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{{DISPLAYTITLE:List of words with the suffix ''-ology''}}
<!--Synonyms\Alternate spellings are only for words that end in ology. If a word is a synonym but doesn't end in ology, add it to the end of the definition. For example:
| [[geratology]] || The study of elderly people and [[senility]]; geriatrics.
||
*gerontology
|-
because geriatrics doesn't end in ology, but gerontology does.
--><!--LEGEND TAGS
misspelling=
style="background: #40e0d0"|[[name]]<sup>[[{{FULLPAGENAME}}#Z|†]]</sup>
not study=
style="background: #ffdead"|[[TITLE]]<sup>[[{{FULLPAGENAME}}#Z|{{tooltip|2=This word is not a study|†}}]]</sup>
-->The [[suffix]] ''[[-ology]]'' is commonly used in the English language to denote a field of study.<ref name=":9" /> The ''ology'' ending is a combination of the letter ''o'' plus ''[[-logy|logy]]'' in which the letter ''o'' is used as an [[thematic vowel|interconsonantal]] letter which, for [[phonological]] reasons, precedes the [[morpheme]] suffix ''[[-logy|logy]]''.<ref name="etymonline">{{cite web |last1=Harper |first1=Douglas |title=-ology |url=http://www.etymonline.com/index.php?term=-ology&allowed_in_frame=0 |website=Online Etymology Dictionary |access-date=7 May 2016}}</ref> ''Logy'' is a [[suffix]] in the English language, used with words originally adapted from [[Ancient Greek]] ending in {{wikt-lang|grc|-λογία}} ({{tlit|grc|-logia}}).<ref>{{Cite web |title=Greek Dictionary Headword Search Results |url=https://www.perseus.tufts.edu/hopper/resolveform?type=end&lookup=logia&lang=greek |archive-url=https://web.archive.org/web/20121015070627/https://www.perseus.tufts.edu/hopper/resolveform?type=end&lookup=logia&lang=greek |archive-date=2012-10-15 |access-date=2025-06-11 |website=Perceus |publisher=Tufts University}}</ref>

English names for fields of study are usually created by taking a [[Root (linguistics)|root]] (the subject of the study) and appending the suffix ''logy'' to it with the interconsonantal ''o'' placed in between (with an exception explained below). For example, the word [[dermatology]] comes from the root ''dermato'' plus ''logy''.<ref name=":5">{{cite web |title=dermatology |url=http://www.etymonline.com/index.php?term=dermatology |access-date=23 July 2016 |website=Etymoline Online Etymology Dictionary}}</ref> Sometimes, an [[Epenthesis|excrescence]], the addition of a consonant, must be added to avoid poor construction of words.

There are additional uses for the suffix, such as to describe a subject rather than the study of it (e.g., [[duology]]). The suffix is often humorously appended to other English words to create [[nonce words]]. For example, ''stupidology'' would refer to the study of stupidity; ''beerology'' would refer to the study of beer.<ref name="etymonline" />

Not all scientific studies are suffixed with ''ology''. When the root word ends with the letter "L" or a vowel, exceptions occur. For example, the study of [[mammals]] would take the root word ''mammal'' and append ''ology'' to it, resulting in ''mammalology'', but because of its final letter being an "L", it instead creates ''[[mammalogy]]''. There are also exceptions to this exception. For example, the word [[angelology]] with the root word ''angel'', ends in an "L" but is not spelled ''angelogy'' according to the "L" rule.<ref>Eric Partridge, ''Origins'', 2nd ed., New York, Macmillan, 1959</ref><ref name=":10">{{Cite web |title=Words Ending In ogy |url=https://words-ending-in-ogy.wordover.com/e/ |access-date=2025-06-11 |website=WordOver Crossword Solver}}</ref>

The terminal ''-logy'' is used to denote a discipline. These terms often utilize the suffix ''-logist'' or ''-ologist'' to describe one who studies the topic. In this case, the suffix ''ology'' would be replaced with ''ologist''. For example, one who studies ''[[biology]]'' is called a ''[[biologist]]''.

This list of words contains all words that end in ''ology''.<ref name=":9">{{Cite web |last=Helmenstine |first=Anne Marie |date=June 10, 2025 |title=A Roster of Scientific Disciplines From A to Z |url=https://www.thoughtco.com/ology-list-of-sciences-608325 |access-date=2025-06-11 |website=ThoughtCo |language=en}}</ref><ref name="etymonline" /><ref name=":10" /><ref>{{cite web |title=List all words that contain ology |url=http://www.morewords.com/contains/ology/ |url-status=dead |archive-url=https://web.archive.org/web/20170426025404/https://www.morewords.com/contains/ology/ |archive-date=April 26, 2017 |access-date=23 July 2016 |website=More Words}}</ref><ref>{{cite book |last1=Aldrich |first1=Chris |url=https://books.google.com/books?id=A7iDw172KBcC&q=define+crenology&pg=PA98 |title=The Aldrich dictionary of phobias & other word families |date=2002 |publisher=Trafford |isbn=1-55369-886-X |location=Victoria, B.C. |pages=88–139 |access-date=12 June 2017}}</ref><ref>{{cite web |title=A list of Ologies |url=http://learningabe.info/Ologieslist.html |url-status=dead |archive-url=https://web.archive.org/web/20141006160307/http://learningabe.info/Ologieslist.html |archive-date=October 6, 2014 |access-date=12 June 2017 |website=Project Arrow}}</ref><ref>{{cite web |date=2013 |title=Sciences and Studies |url=http://phrontistery.enacademic.com/4223/Sciences_and_Studies |url-status=dead |archive-url=https://phrontistery.enacademic.com/4223/Sciences_and_Studies |archive-date=September 29, 2020 |access-date=12 June 2017 |website=Phrontistery Dictionary. |language=en |via=Academic}}</ref><ref>{{cite web |title=Ologies and Graphys |url=http://www.quick-facts.co.uk/science/ologies.html |url-status=dead |archive-url=https://web.archive.org/web/20230404170038/http://www.quick-facts.co.uk/science/ologies.html |archive-date=April 4, 2023 |access-date=18 July 2017 |website=Quick Facts}}</ref><ref>{{Cite web |date=2020-05-06 |title=10 Types Of "Ologists" You Ought To Know Right Now |url=https://www.dictionary.com/e/s/different-types-of-ologists/ |access-date=2025-06-11 |website=Dictionary.com |language=en-US}}</ref> In addition to words that denote a field of study, it also includes words that do not denote a field of study for clarity, indicated in orange. As of April 2026 the list below contains 974 -ology words.

{{Compact TOC|name=Directory|center=yes|seealso=yes|notes=yes|refs=yes|extlinks=yes|nobreak=yes|y=}}
{{clear right}}

==A==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| abiology<ref>“[[doi:10.1093/OED/5293502754|Abiology, N.]]” ''[[Oxford English Dictionary]].'' Oxford University Press, July 2023.</ref>|| The study of inanimate, inorganic, or lifeless things.
||
|-
| abiophysiology<ref>"[https://medical-dictionary.thefreedictionary.com/abiophysiology abiophysiology]." ''Segen's Medical Dictionary''. Farlex, 2011. via The Free Dictionary by Farlex, Inc.. Assessed September 24, 2024.</ref>|| The study of inorganic processes in biological systems.
||
|-
| [[acanthochronology]] || The study of cactus spines or [[euphorbia]] thorns grown in time ordered sequence.
||
|-
| acanthology<ref name=":6">“[[mwod:acanthology|Acanthology]].” ''Dictionary.'' [[Merriam-Webster]]. Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The study of [[Spine (zoology)|spined]] things, in particular [[sea urchins]], and the resultant impact on [[taxonomy (biology)|taxonomy]].
||
|-
| [[acarology]] || The study of [[mites]] and [[ticks]].
||
|-
|| [[accentology]] || The systematic analysis of word or phrase stress and accentuation in language.
||
|-
| [[aceology]] || The science of remedies or therapeutics.
||
*[[iamatology]]
|-
| [[acology]] || The science of medical remedies, [[Materia Medica]].
||
|-
| [[acridology]] || The study of [[grasshoppers]] and [[locusts]] (infraorder ''[[Acrididea]]'').
||
|-
| acropathology<ref>Venes, Donald, editor. "[https://www.tabers.com/tabersonline/view/Tabers-Dictionary/737411/all/acropathology Acropathology]." ''[[Taber's Medical Dictionary]]'', 24th ed., F.A. Davis Company, 2021. via ''Taber's Online''. Accessed September 24, 2024.</ref>|| The study of diseases affecting [[limb (anatomy)|limb]]s.
||
|-
| [[actinobiology]] ||  The study of the effects of [[radiation]] upon living organisms.
||
|-
| [[actinology]] || The study of the effect of light on chemicals.
||
|-
| style="background: #ffdead"|[[Acyrologia|acyrology]]{{Efn|Term is not about a field of study.|name=Field of Study}}|| The incorrect use of language.
||
*cacology
|-
| [[adenology]] || The branch of [[medicine]] dealing with the development, structure, function, and diseases of [[glands]].
||
|-
| aedoeology<ref>{{Cite book |last=Elliot |first=Sydney Barrington |url=http://archive.org/details/aedoeologytreati00elli |title=Aedoeology: a treatise on generative life; including pre-natal influence, limitation of offspring, and hygiene of the generative system |date=1893 |location=Boston |publisher=Arena Publishing Co.}}</ref><ref>{{Cite web |last=Chrisomalis |first=Stephen |title=List of unusual words beginning with A |url=https://phrontistery.info/a.html |access-date=2025-06-10 |website=The Phrontistery – A Dictionary of Obscure Words}}</ref>|| The study of [[generative organs]] and processes
||
|-
| [[aerobiology]] || A branch of [[biology]] that studies organic particles, such as [[bacteria]], fungal [[spore]]s, very small [[insects]], [[pollen]] grains and [[viruses]], which are passively transported by the air.
||
|-
| [[aerolithology]] || The study of [[meteorites]].
||
|-
| aerogeology<ref name=":7">“[[mwod:aerogeology|Aerogeology]].” ''Dictionary''. [[Merriam-Webster]]. Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The study of geological features by aerial observation and [[Aerial photography|aerophotography]].
||
|-
| [[aerology]] || 
#The branch of [[meteorology]] involving the observation of the atmosphere by means of [[Weather balloon|balloons]], airplanes, etc.
#The study of the air and of the atmosphere; used in the [[United States Navy|US Navy]] until early 1957.
||
*meteorology
|-
| [[aeropalynology]]<ref>Biesboer, David. “[[doi:10.2307/4445805|Aeropalynology]].” ''The American Biology Teacher'' 39, no. 2 (1977): 88–92.</ref>|| The study of [[pollen]] grains and spores ([[Palynology|palynomorphs]]) in the atmosphere.
||
|-
| [[aetiology]] || 
#The establishment of a cause, origin, or reason for something.
#The study of causes or causation.
#The study or investigation of the causes of disease; a scientific explanation for the origin of a disease.
||
3.
*etiology
*ætiology
|-
| [[agathology]] || The science or theory of the good or goodness.
||
|-
| agmatology<ref name=":8">"[https://www.thefreedictionary.com/agmatology agmatology]." ''-Ologies & -Isms''. The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The branch of medical science that studies [[Bone fracture|fractures]].
||
|-
| [[agnoiology]] || The study of things of which humans are by nature ignorant, or of things which cannot be known.
||
*agniology
*agnoeology
|-
| [[agnotology]] || The study of culturally induced ignorance or doubt, particularly the publication of inaccurate or misleading scientific data.
||
*agnatology
|-
| [[agriology]] || The comparative study of primitive, illiterate, or "savage" cultures.
||
|-
| [[agrobiology]] || The science of plant nutrition and growth concerning soil conditions, especially to determine ways to increase crop yields.
||
|-
| agroclimatology<ref>“[[mwod:agroclimatology|Agroclimatology]].” ''Dictionary''. [[Merriam-Webster]]. Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The study of meteorological, climatological, and hydrological conditions that are significant for agriculture owing to their interaction with the objects and processes of agricultural production.
||
|-
| [[agroecology]] || The study of ecological processes that operate in agricultural production systems.
||
|-
| [[agrogeology]] || The study of the origins of minerals known as [[agrominerals]] and their applications.
||
|-
| [[agrology]] || 
#The science and art of [[agriculture]].
#A sub-discipline of [[soil science]] which addresses optimizing crop production (common usage, not acceptable to soil scientists)
#A sub-discipline of [[agronomy]] which addresses the influence of [[edaphic]] conditions on crop production.
||
|-
| [[agrometeorology]] || The study of weather and the use of weather and climate information to enhance or expand agricultural crops and/or to increase crop production.
||
|-
| [[agrostology]] || The scientific study of the grasses (family [[Poaceae]]).
||
*graminology
|-
| [[agrotechnology]] || The application of modern technology to agriculture.
||
|-
| [[aitiology]] ||
#The study of causation, or origination.
#The causes of diseases or [[pathologies]]. (medicine)
||
*etiology
*aetiology
*ætiology
|-
| [[Albanology]] ||
An interdisciplinary branch of the humanities that addresses the language, costume, literature, art, culture, and history of [[Albanians]].
||
|-
| [[alethiology]] || The study of the nature of truth or ''[[aletheia]]''.
||
*alethology
|-
| [[algology (medicine)|algology]] || 
#The medical treatment of pain as practiced in Greece and Turkey.
#The branch of botany dealing with algae.
||
2. phycology
|-
| alimentology<ref>"[https://www.thefreedictionary.com/alimentology alimentology]." ''-Ologies & -Isms''. The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The study of [[nutrition]].
||
|-
| [[allergology]] || The study of the causes and treatment of [[allergies]].
||
|-
| alphabetology<ref>“[[mwod:alphabetology|Alphabetology]].” ''Dictionary''. [[Merriam-Webster]]. Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The study of [[alphabetic]] systems of writing.
||
|-
| [[amphibiology]]<ref>“[[mwod:amphibiology|Amphibiology]].” ''Dictionary''. [[Merriam-Webster]]. Merriam-Webster.com.Accessed September 24, 2024.</ref>|| The branch of [[zoology]] that deals with the class ''[[Amphibia]]''.
||
|-
| style="background: #ffdead"|[[amphibology]]{{Efn|name=Field of Study}}||  A situation where a sentence may be interpreted in more than one way due to ambiguous sentence structure.
||
*amphiboly
|-
| [[anaplastology]] || The branch of medicine dealing with the [[prosthetic]] rehabilitation of an absent, disfigured, or malformed anatomically critical location of the face or body.
||
|-
| anatripsology<ref>“[[doi:10.1093/OED/4136400226|Anatripsology, N]].” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>|| The study of [[friction]] as a remedy in medicine.
||
|-
| [[andrology]] || The medical specialty that deals with male health, particularly relating to the problems of the [[male reproductive system]] and [[urological]] problems that are unique to men.
||
|-
| [[anemology]] || The study of [[wind]].
||
|-
| [[anesthesiology]] || The branch of medical science that studies and applies [[anesthetic]]s and [[anesthesia]].
||
|-
| [[angelology]] || The study of [[angels]].
||
|-
| [[angiology]] || The study of the anatomy of [[blood]] and [[lymph]] vascular systems.
||
|-
| angiopathology<ref>Venes, Donald, editor. "[https://www.tabers.com/tabersonline/view/Tabers-Dictionary/747169/all/angiopathology#:~:text=%5Bangio%2D%20%2B%20pathology%5D,diseases%20of%20the%20blood%20vessels. Angiopathology]." ''Taber's Medical Dictionary'', 24th ed., F.A. Davis Company, 2021. ''Taber's Online''.</ref>|| The [[pathology]] of diseased [[blood vessel]]s.
||
|-
| style="background: #ffdead"|antapology<ref>"[https://www.thefreedictionary.com/antapology antapology]." ''Farlex Trivia Dictionary''.  Farlex, Inc., 2011. via The Free Dictionary by Farlex. Accessed September 24, 2024</ref>{{Efn|name=Field of Study}}|| The reply to an [[Remorse|apology]].
||
|-
| anthoecology<ref>“[[mwod:anthoecology|Anthoecology]].” ''Dictionary''. [[Merriam-Webster]]. Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The branch of [[ecology]] that studies the relationship of [[flowers]] to their environment.
||
|-
| style="background: #ffdead"|[[anthology]]{{Efn|name=Field of Study}}|| A published collection of poems or other pieces of writing.
||
|-
| [[anthropobiology]] || The study of the biological relationships of humans as a species.
||
*bioanthropology
|-
| [[anthropology]] || The [[holistic]] scientific and social study of humanity, mainly using [[ethnography]] as its method.
||
|-
| style="background: #ffdead"|anthropomorphology<ref>“[[mwod:anthropomorphology|Anthropomorphology]].” ''Dictionary''. [[Merriam-Webster]]. Merriam-Webster.com. Accessed 24 Sep. 2024.</ref><sup>[[{{FULLPAGENAME}}#Z|{{Efn|name=Field of Study}}]]</sup> || The attribution of human characteristics to God.
||
|-
| [[anthroposociology]] || The anthropological and sociological study of race to establish certain people's superiority.
||
|-
| [[anthrozoology]] || The study of the interactions between humans and animals.
||
|-
| style="background: #ffdead"|[[antitechnology]]{{Efn|name=Field of Study}}|| A philosophy opposing technology.
||
|-
| [[aphasiology]] || The study of [[Language disorder|linguistic problems]] or [[aphasias]] resulting from [[brain damage]].
||
|-
| aphnology<ref>"[https://www.thefreedictionary.com/aphnology aphnology]." ''-Ologies & -Isms''. The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The study of [[wealth]].
||
*plutology
|-
| [[apicology]] || The study of [[honey bee]] ecology.
||
|-
| [[apiology]] || The scientific study of [[honey bees]] and [[honey]]-making.
||
*apidology
|-
| style="background: #ffdead"|[[Remorse|apology]]<sup>[[{{FULLPAGENAME}}#Z|{{Efn|name=Field of Study}}]]</sup> || An acknowledgement for a failure or mistake.
||
|-
| [[arachnology]] || The scientific study of [[spiders]] and related animals such as [[scorpion]]s, [[pseudoscorpions]], and [[harvestmen]], collectively called [[arachnids]].
||
|-
| [[araneology]] || The branch of [[arachnology]] that deals with [[spiders]].
||
|-
| archaeogeology<ref>"[[doi:10.1093/OED/1169173430|Archaeogeology, N]].“ Oxford English Dictionary, Oxford UP, September 2024.</ref>{{efn|name=fn3}} || The branch of geology that studies the geological formations of the past.
||
|-
| [[archeology]]{{efn|name=fn3}} || The study of human activity through the recovery and analysis of [[material culture]].
||
|-
| [[Archaeozoology|archeozoology]]{{efn|name=fn3}} || The study of faunal remains or the items left behind when an animal dies.
||
*zooarcheology{{efn|name=fn3}}
|-
| [[archology]] || The study of the science of governance or the origin of things.
||
|-
|[[arcology]]
|The field of creating architectural design principles for very densely populated, ecologically low-impact human habitats.
|
|-
| [[areology]] || The study of the planet [[Mars]]' geology.
||
|-
| [[aretology]] || 
#The part of moral philosophy which treats virtue, its nature, and the means of attaining it.
# A narrative about a divine figure's miraculous deeds.
||
|-
| [[aristology]] || The art or study of cooking and dining.
||
|-
| [[Noah's Ark|ark]]eology || The study of the story of [[Noah's Ark]], particularly the search for physical evidence which would [[corroborate]] it.
||
|-
| [[Armenology]] ||  The study of [[Armenia]]n [[History of Armenia|history]], [[Armenian language|language]], and [[Culture of Armenia|culture]].
||
|-
| arteriology<ref>“[[doi:10.1093/OED/7952748132|Arteriology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The branch of [[angiology]] dealing with [[arteries]].
||
|-
| [[arthrology]] || The branch of [[anatomy]] dealing with [[joints]].
||
*synosteology
|-
| arthropathology<ref>Venes, Donald, editor. "[https://www.tabers.com/tabersonline/view/Tabers-Dictionary/764972/all/arthropathology Arthropathology]." ''[[Taber's Medical Dictionary]]'', 24th ed., F.A. Davis Company, 2021. ''Taber's Online''. Accessed September 24, 2024.</ref>|| The study of functional and structural changes made by diseases of the [[joints]].
||
|-
| [[arthropodology]] || The study of [[arthropods]].
||
|-
| [[Assyriology]] || The study of the [[Assyrian people|Assyrians]].
||
|-
| [[astacology]] || The study of [[crayfish]].
||
|-
| [[asteroseismology]]|| The study of [[oscillations]] in stars.
||
|-
| [[astheniology]]|| The study of diseases of weakening and aging.
||
|-
| asthmology<ref>{{Cite book |url=https://link.springer.com/book/10.1007/978-3-642-70316-4 |title=Highlights in Asthmology |publisher=Springer Berlin, Heidelberg |year=2012 |isbn=978-3-642-70316-4 |editor-last=Michel |editor-first=François Bernard |language=en |doi=10.1007/978-3-642-70316-4 |editor-last2=Bousquet |editor-first2=Jean |editor-last3=Godard |editor-first3=Philippe |via=SpringerLink}}</ref>|| [[Neologism]] for the study of [[asthma]], proposed in 1981.
||
|-
| [[Archaeoastronomy|astroarchaeology]]{{efn|name=fn3}} || The study of astronomical knowledge of prehistoric cultures.
||
* archaeoastronomy
|-
| [[astrobiology]] || The study of the [[Abiogenesis|origin]], evolution, distribution, and future of life in the universe: [[extraterrestrial life]] and life on Earth.
||
*exobiology
|-
| [[astrogeology]] || The science dealing with the structure and composition of [[planets]] and other bodies in the [[Solar System]].
||
*exogeology
|-
| [[astrolithology]] || The study of [[stony meteorite|aerolites]].
||
|-
| [[astrology]] || The study of the movements and relative positions of [[celestial objects]] as a means for [[divining]] information about human affairs and terrestrial events.
||
|-
| [[astrometeorology]] || The study of the theoretical effects of astronomical bodies and forces on the [[Earth's atmosphere]].
||
|-
| [[astroseismology]] || The study of oscillations in stars.
||
*asteroseismology
|-
| style="background: #ffdead"|[[atheology]]{{Efn|name=Field of Study}}|| The resistance or opposition to [[theology]] or the study of religion
||
|-
| atmology<ref>{{Cite web |title=Definition of 'atmology' |url=https://www.collinsdictionary.com/us/dictionary/english/atmology |access-date=September 13, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref>|| The branch of science dealing with the laws and phenomena of [[aqueous vapour]].
||
|-
| atmospherology<ref>“[[doi:10.1093/OED/7787401101|Atmospherology, ''N'']]''.''” ''Oxford English Dictionary'', Oxford UP, July 2023.</ref>|| The study of a planetary [[atmosphere]].
||
|-
| atomology<ref>"[https://www.thefreedictionary.com/atomology atomology]." ''-Ologies & -Isms''. The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The study or [[doctrine]] of [[atoms]].
||
|-
| [[audiology]] || The study of the [[Auditory system|auditory]] and [[Vestibular system|vestibular]] systems, and associated disorders.
||
|-
| [[autecology]] || One of two broad subdivisions of [[ecology]], which studies the individual organism or species.
||
|-
| [[autology]] || The study of oneself.
||
|-
| autonumerology<ref>"[https://www.thefreedictionary.com/autonumerology autonumerology]." ''-Ologies & -Isms''. The Gale Group, Inc., 2008.  via The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The study of unusual [[license plates]].
||
|-
| [[auxanology]] || The study of growth.
||
*auxology
|-
| [[auxology]] || The study of growth.
||
*auxanology
|-
| [[axiology]] || The philosophical study of value.
||
|-
| azoology<ref>[https://www.thefreedictionary.com/azoology "azoology]." ''-Ologies & -Isms''. The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The study of inanimate nature.
||
|}

==B==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[bacteriology]] || The scientific study of [[bacteria]], especially in relation to [[disease]] and [[agriculture]].
||
|-
| [[balneology]] || The study of the treatment of disease by bathing, usually practiced at spas.
||
|-
| barology<ref>“[[doi:10.1093/OED/9551871275|Barology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[gravity]] and weight and their relation.
||
|-
| Bascology<ref>“[[doi:10.1093/OED/4094472024|Bascology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[Basque language]] and [[Basque culture|culture]].
||
|-
| [[batology]] || The study of plants in the genus [[Rubus]], commonly known as [[brambles]].
||
|-
| [[batrachology]] || The study of [[amphibians]].
||
|-
| style="background: #ffdead"|battology<ref>{{Cite web |title=Definition of 'battology' |url=https://www.collinsdictionary.com/us/dictionary/english/battology#:~:text=battology%20in%20American%20English,words%20in%20speaking%20or%20writing |access-date=September 13, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref>{{Efn|name=Field of Study}}|| Continual unnecessary reiteration of the same words, phrases, or ideas.
||
|-
|berestology<ref>Dekker, Simeon (2018). "The Field of Study: Berestology". ''Old Russian birchbark letter: a pragmatic approach''. Leiden. p. 1. {{ISBN|978-90-04-35320-6}}. [[OCLC (identifier)|OCLC]] 1030304572.</ref>
|The study of [[Birch bark manuscript|birchbark manuscripts]].
|
|-
| [[bibliology]] || The study of books as physical, cultural objects.
||
|-
|[[bioarchaeology]]
|The study of ancient bones.
|
|-
| biocenology<ref>“[[mwod:biocenology|Biocenology]].” ''Dictionary''. [[Merriam-Webster]]. Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The branch of biology deals with studying biological communities and their members' interactions.
||
*biocoenology
|-
| [[bioclimatology]] || The interdisciplinary field of science that studies the interactions between the [[biosphere]] and the [[Earth's atmosphere]] on time scales of the order of seasons or longer (in opposition to [[biometeorology]]).
||
|-
| [[bioecology]] || The study of the relationship of organisms to each other and their environment.
||
|-
| [[biogerontology]] || The sub-field of [[gerontology]] concerned with the biological aging process, its evolutionary origins, and potential means to intervene in the process.
||
|-
| [[biology]] || The study of life and living organisms and their [[Morphology (biology)|morphology]], [[anatomy]], and [[physiology]].
||
|-
| [[biometeorology]] || The study of the relationship between atmospheric conditions (the weather) and living organisms.
||
|-
| [[biopsychology]] || The application of the principles of biology to study physiological, genetic, and developmental mechanisms of behavior in humans and other animals.
||
*psychobiology
*biological psychology
*behavioral neuroscience
|-
| [[biospeleology]] || The branch of biology dedicated to the study of organisms that live in caves and are collectively referred to as [[troglofauna]].
||
*cave biology
|-
| style="background: #ffdead"|[[biotechnology]]{{Efn|name=Field of Study}}|| The use of living systems and organisms to develop or make products.
||
|-
| [[boxology]] || A representation of an organized structure as a [[Graph theory|graph]] of labeled nodes ("[[Rectangle|boxes]]") and connections between them (as lines or arrows).
||
|-
| style="background: #ffdead"|[[brachyology]]{{Efn|name=Field of Study}}||
#The colloquial omission of words from a phrase; e.g. "morning" instead of "good morning".
#Concise speech or [[laconic phrase|laconism]].
||
1. brachylogy
|-
| [[bracketology]] || The practice of predicting and analyzing sports tournament [[Bracket (tournament)|brackets]].
||
|-
| [[bromatology]] || The study of food.
||
|-
| [[brontology]] || The study of [[thunder]].
||
|-
| [[bryology]] || The branch of [[botany]] concerned with the scientific study of [[bryophytes]].
||
|-
| [[bumpology]] || Archaic and derogatory term for [[phrenology]].
||
|-
| [[Byzantinology]] || The interdisciplinary branch of the [[humanities]] that addresses the [[History of Byzantine Empire|history]], culture, [[Byzantine dress|costumes]], religion, [[Byzantine art|art]], such as [[Byzantine literature|literature]] and [[Byzantine music|music]], [[Byzantine science|science]], [[Byzantine economy|economy]], and [[Byzantine aristocracy and bureaucracy|politics]] of the [[Byzantine Empire]].
||
|}

==C==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| style="background: #ffdead"|cacology<ref>“[[mwod:cacology|Cacology]].” ''Dictionary''. [[Merriam-Webster]]. Merriam-Webster.com. Accessed September 24, 2024.</ref>{{Efn|name=Field of Study}}|| Poor [[diction]] or word choice.
||
*[[Acyrologia|acyrology]]
|-
| [[caliology]] || The study of birds nests.
||
*nidology
|-
| [[campanology]] || The study of [[bell]]s: their [[Bellfounding|casting]], tuning, and ringing.
||
|-
| cancerology<ref>“[https://www.merriam-webster.com/medical/cancerology Cancerology].” ''Medical Dictionary.'' [[Merriam-Webster]]. via Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The study of [[cancer]].
||
*[[oncology]]
|-
| [[carcinology]] || The study of [[crustaceans]].
||
*malacostracology
*crustalogy
*crustaceology
|-
| [[cardiology]] || The study of the [[heart]].
||
|-
| [[caricology]] || The study of [[carex]] or sedges.
||
|-
| [[cariology]] || The study of [[dental caries]] and [[cariogenesis]].
||
|-
| [[carphology]] || A lint-picking behavior that is often a symptom of a [[Delirium|delirious state]].
||
|-
| [[carpology]] || The study of the structure of [[seeds]] and [[fruit]].
||
|-
| [[cartology]] || The creation of charts and [[maps]] based on the layout of a territory's geography.
||
|-
| catachronobiology<ref>"[https://medical-dictionary.thefreedictionary.com/catachronobiology catachronobiology]." ''Medical Dictionary for the Health Professions and Nursing''. Farlex, 2012. via The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The study of the deleterious effects of time on a living system.
||
|-
| cecidology|| The study of [[plant galls]], also known as cecidia, which are growths on plants produced by insects, mites, or fungi.
||
*cecidiology
|-
| cephalology<ref>“[[doi:10.1093/OED/1554280053|Cephalology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, September 2024.</ref>|| The science of the head.
||
|-
| [[cereology]] || The study of, or practice of creating crop circles.
||
|-
| cerebrology<ref>“[[doi:10.1093/OED/1250478633|Cerebrology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, June 2024.</ref>|| The science that deals with the [[cerebrum]] or [[brain]].
||
|-
| [[cetology]] || The branch of [[zoology]] concerned with the order [[Cetacea]], which includes [[whales]], [[dolphins]], and [[porpoises]].
||
|-
| [[chaology]] || The study of chaos and chaotic systems.
||
*chaos theory
|-
| [[characterology]] || The study of character reading that attempts to combine revised [[physiognomy]], reconstructed [[phrenology]] and amplified [[pathognomy]], with [[ethnology]], [[sociology]] and [[anthropology]]. 
||
|-
| [[chasmology]]<ref>Seuntjens W. [https://pubmed.ncbi.nlm.nih.gov/20357463/ "The hidden sexuality of the yawn and the future of chasmology]". ''[[Frontiers of Neurology and Neuroscience]],'' vol. 28 (2010): 55-62. doi: 10.1159/000307081. PMID 20357463.</ref>|| The study of [[yawning]]. ||
|-
| [[cheloniology]] || The study of turtles or tortoises (order [[Turtle|Chelonia]]).
||
*chelonology
*testudinology
|-
| chemo-immunology<ref>Sordo-Bahamonde, C.; Lorenzo-Herrero S., Gonzalez-Rodriguez, A. P. et al. Chemo-Immunotherapy: A New Trend in Cancer Treatment. ''[[Cancers (journal)|Cancers (Basel)]]''. vol. 15, no. 11: 2012. Published  May 25, 2023. {{doi|10.3390/cancers15112912|doi-access=free}}</ref>|| The branch of chemistry that studies the chemical processes in [[immunology]].
||
|-
| [[chirology]] || 
#The study of the [[hand]].
#[[Palm reading]].
||
|-
| chondrology<ref>“[https://www.merriam-webster.com/medical/chondrology Chondrology].” ''Medical Dictionary'', [[Merriam-Webster]]. via Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The study of [[cartilage]].
||
|-
| [[choreology]] || The study of the aesthetic and science of forms of human movement by special notation; Benesh Movement Notation
||
|-
| [[chorology]] ||
#The study of the causal relations between geographical phenomena occurring within a particular region
#The study of the [[spatial distribution]] of organisms.
||
|-
| [[chresmology]] || The study of [[prophecies]].
||
*chrismology
|-
| [[Christology]] || The field of study within [[Christian theology]] which is primarily concerned with the nature and person of Jesus as recorded in the [[canonical Gospels]] and the [[epistle]]s of the [[New Testament]].
||
|-
| chromatology<ref>“[[doi:10.1093/OED/6545539117|Chromatology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, June 2024.</ref>|| The study of [[colour]].
||
|-
| [[chronobiology]] || A field of biology that examines periodic (cyclic) phenomena in living organisms and their adaptation to solar- and lunar-related rhythms.
||
|-
| [[chronology]] || 
#The study of things in order of time or the study of time.
#The arrangement of events or dates in the order of their occurrence.
||
|-
| chronooncology<ref>[https://medical-dictionary.thefreedictionary.com/chronooncology chronooncology]. ''Medical Dictionary for the Health Professions and Nursing''. (2012). ''via'' The Free Dictionary by Farlex. Retrieved September 27, 2024.</ref>|| 
#The study of the influence of [[Chronobiology|biological rhythms]] on [[neoplasm|neoplastic growths]].
#The study of the timing of drug administration for [[Treatment of cancer|anti-cancer treatments]].
||
|-
| [[chronopharmacology]] || The study of the effects of [[Chronobiology|biological rhythms]] on [[pharmacotherapy]] and drug administration.
||
|-
| chrysology<ref>“[[doi:10.1093/OED/7913856696|Chrysology, N]].” ''[[Oxford English Dictionary]].'' Oxford University Press, September 2024.</ref>|| The study of the production of wealth.
||
|-
| [[cirripedology]] || The study of [[barnacles]].
||
|-
| [[climatology]] || The science that deals with [[climates]], and investigates their phenomena and causes.
||
|-
| clinology<ref>"[https://medical-dictionary.thefreedictionary.com/clinology clinology]." ''Segen's Medical Dictionary''. Farlex, Inc., 2011. ''via'' The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The study of retrogression and decline in form and function in an animal or organism.
||
|-
| coalitionology<ref>{{Cite web |last=Ryan |first=Nicky |date=2016-01-16 |title='Coalitionology' is the new buzzword in Irish politics right now |url=https://www.thejournal.ie/fianna-fail-ard-fheis-coalition-2551860-Jan2016/ |access-date=2024-09-13 |website=The Journal |language=en}}</ref>|| Speculation in the run-up to a general election about possible [[coalition]] governments that might ensue. Used in [[United Kingdom|Britain]] and [[Ireland]].
||
|-
| [[coccidology]] || The study of [[scale insect]]s, [[mealybugs]], and organisms within the [[Superfamily (biology)|superfamily]] ''[[Coccoidea]]''.
||
|-
| [[codicology]] || The study of books as physical objects, especially [[manuscripts]] written on [[parchment]] (or paper) in [[codex]] form.
||
|-
| style="background: #ffdead"|codology<ref>Term is not about a field of study.</ref>{{Efn|name=Field of Study}}|| (Irish) [[Hoax]]ing, humbugging, bluffing, leg-pulling.
||
*kidology
|-
| [[cognitology]] || The multidisciplinary study of mind and behavior; [[cognitive science]]
||
|-
|[[cohomology]]
|The theory of a sequence of [[abelian groups]] associated to a [[topological space]], often defined from a [[cochain complex]].
|
|-
| [[coleopterology]] || The scientific study of beetles (order ''[[Coleoptera]]'').
||
|-
| [[collapsology]] || A [[neologism]] used to designate the transdisciplinary study of the risks of the collapse of industrial civilization.
||
|-
| [[coloproctology]] || Branch of medicine dealing with [[pathology]] of the [[Large intestine|colon]], [[rectum]], and [[anus]] and [[colorectal surgery]].
||
|-
| cometology<ref>{{Cite web |title=Definition of 'cometology' |url=https://www.collinsdictionary.com/us/dictionary/english/cometology |access-date=September 13, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref>|| The branch of [[astronomy]] that deals with [[comets]].
||
|-
| [[comitology]] || In the [[European Union]], the system of committees, composed of representatives of the member states, is used to oversee the [[European Commission]] implementing acts made under European Union legislation.
||
|-
| [[computerology]] || The study of [[computer]]s, or any kind of work with computers.
||
|-
| [[conchology]] || 
#The study of [[molluscs]] and their shells.
#The hobby of shell collecting.
||
|-
| [[coniology]] || The study of atmospheric dust and its effects on organisms.
||
|-
| conscientiology<ref>{{Cite web |title=Get to know Conscientiology |url=https://campusceaec.org/en/get-to-know-conscientiology-online/ |access-date=2025-06-10 |website=Campus CEAEC |language=en-US}}</ref>|| The study of consciousness.
||
|-
| [[contrology]] || The methods of the physical fitness system called [[Pilates]].
||
|-
| [[coprology]] || The study of [[feces]].
||
*scatology
|-
| cosmecology<ref>“[[mwod:cosmecology|Cosmecology]].” ''Dictionary'', [[Merriam-Webster]]. via Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The science that considers the Earth in its relation to cosmic phenomena.
||
|-
| [[cosmetology]] || The science or study of [[cosmetics]] or being a beautician.
||
|-
| [[cosmochronology]] || The science of determining timescales for [[Astrophysics|astrophysical]] objects and events.
||
|-
| [[cosmology]] || The study of the origin, evolution, and eventual fate of the universe.
||
|-
| [[craniology]] || A [[pseudomedicine]] primarily focused on measurements of the human skull, based on the concept that the brain is the organ of the mind and the mental state can be determined by physical external characteristics.
||
*phrenology
|-
| crenology<ref>Cervini, C, and A M Zampa. “[https://pubmed.ncbi.nlm.nih.gov/6968656/ Reumatologia e crenologia: realtà e prospettive]” [Rheumatology and crenology: current status and prospects]. ''La Clinica terapeutica'' vol. 93,6 (1980): 607–619.</ref>|| The utilization of [[mineral springs]] for therapeutic purposes.
||
*craunology
|-
| [[criminology]] || The scientific study of the nature, extent, management, causes, control, consequences, and prevention of [[criminal behavior]], both on the individual and social levels.
||
|-
| criteriology<ref>“[[doi:10.1093/OED/4331278016|Criteriology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, June 2024.</ref>|| 
#The part of logic dealing with the establishment of criteria.
#The study of how judgments can be made solely based on specific criteria.
||
|-
| [[crustaceology]] || The branch of [[zoology]] dealing with [[crustaceans]].
||
*carcinology
*malacostracology
*crustalogy
|-
| [[cryobiology]] || The study of biological material or systems at temperatures below normal.
||
|-
| [[cryology]] || The study of very low temperatures and related phenomena.
||
|-
| [[cryopedology]] || The study of frozen grounds and intensive frost action.
||
|-
| cryoseismology<ref>Podolskiy, E.A. and Walter, F. "[[doi:10.1002/2016RG000526|Cryoseismology]]". ''Reviews of Geophysics'', vol. 54, no. 4 (2016) pp.708–758. doi.org/10.1002/2016RG000526</ref>|| The study of [[cryoseism]], also known as an ice quake or a frost quake.
||
|-
| [[cryptology]] || The study and practice of analyzing encoded messages, to decode them.
||
*cryptography
|-
| [[cryptozoology]] || A [[pseudoscience]] involving the search for [[list of legendary creatures|creatures whose existence has not been proven]] due to lack of evidence.
||
|-
| crystallology<ref>“[[doi:10.1093/OED/3519010520|Crystallology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of the [[crystalline structure]] of inorganic bodies.
||
|-
| ctetology<ref>“[[mwod:ctetology|Ctetology]].” ''Dictionary.'' [[Merriam-Webster]]. via Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The branch of biology that studies the origin and development of acquired characteristics.
||
|-
| curiology<ref>“[[doi:10.1093/OED/1060567551|Curiology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of picture writing, especially crude [[hieroglyphics]].
||
*kuriology
|-
| cyclonology<ref>“[[doi:10.1093/OED/6447359718|Cyclonology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[cyclones]].
||
|-
| cyesiology<ref>"[https://www.thefreedictionary.com/cyesiology cyesiology]." ''-Ologies & -Isms''. The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The study of [[gestation]] and [[pregnancy]].
||
|-
| [[cynology]] || The study of [[dogs]].
||
|-
| [[cytology]] || The study of [[Cell (biology)|cells]].
||
|-
| cytomorphology<ref>“[https://www.merriam-webster.com/medical/cytomorphology Cytomorphology].” ''Medical Dictionary'', [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The study of the structure of cells.
||
|-
| [[cytopathology]] || A branch of [[pathology]] that studies and diagnoses diseases on the cellular level.
||
|-
| cytophysiology<ref>“[https://www.merriam-webster.com/medical/cytophysiology Cytophysiology].” ''Medical Dictionary''. [[Merriam-Webster]]. via Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The [[physiology]] of [[Cell (biology)|cells]].
||
|-
| [[cytotechnology]] || The study of cells to detect cancer and other abnormalities.
||
|}

==D==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[Dacology]] || The study of ancient [[Dacia]] and its culture and antiquities.
||
|-
| dactyliology<ref>{{Cite web |title=Definition of 'dactyliology' |url=https://www.collinsdictionary.com/us/dictionary/english/dactyliomancy |access-date=September 13, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref>|| 
#The study of [[finger rings]].
#The study of [[gem engraving]].
||
|-
| style="background: #ffdead"|[[dactylology]]<sup>[[{{FULLPAGENAME}}#Z|{{Efn|name=Field of Study}}]]</sup> || The representation of the letters of a writing system and sometimes numeral systems using only the hands, especially by the deaf; fingerspelling.
||
|-
| Dantology<ref>“[[doi:10.1093/OED/1364135285|Dantology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[Dante Alighieri]] and [[:Category:Works by Dante Alighieri|his works]].
||
|-
| defectology<ref>{{Cite web |title=defectology |url=https://dictionary.apa.org/defectology |access-date=2024-09-25 |website=APA Dictionary of Psychology |publisher=[[American Psychological Association]] |language=en}}</ref>|| A branch of science that is concerned with the study of the principles and characteristics of the development of children with physical and mental defects and the problems of their training and upbringing. Also describes the training of teachers of handicapped children. (Used in the former [[Soviet Union]].)
||
|-
| style="background: #ffdead"|dekalogy<ref>{{Cite web |title=Definition of 'dekalogy' |url=https://www.collinsdictionary.com/us/dictionary/english/dekalogy |access-date=September 13, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref><sup>[[{{FULLPAGENAME}}#Z|{{Efn|name=Field of Study}}]]</sup> || A series of ten related works.
||
|-
| [[deltiology]] || The study and collection of [[postcards]].
||
|-
| demology<ref>{{Cite web |title=Definition of 'demology' |url=https://www.collinsdictionary.com/us/dictionary/english/demology#:~:text=(d%C9%9Bm%CB%88%C9%92l%C9%99d%CA%92%C9%AA%20),human%20populations%2C%20activities%2C%20and%20behaviour |access-date=September 13, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref>|| The study of human populations, activities, social conditions, and [[Human behavior|behavior]].
||
|-
| [[demonology]] || The study of [[demons]], especially the [[incantation]]s required to summon and control them.
||
*daemonology
|-
| [[dendroarchaeology]]{{efn|name=fn3}} || In [[archaeology]], the science that uses [[dendrochronology]] to date wooden material from archaeological sites.
||
|-
| [[dendrochronology]] || The science that uses the spacing between the annual growth rings of trees to date their exact year of formation.
||
|-
| [[dendroclimatology]] || The science that uses [[dendrochronology]] to reconstruct historical climate conditions.
||
|-
| dendroecology<ref>{{Cite web |title=Dendroecology {{!}} Laboratory of Tree-Ring Research |url=https://ltrr.arizona.edu/dendroecology |access-date=2024-09-13 |website=University of Arizona}}</ref>|| The science that uses [[dendrochronology]] to analyze historic ecological processes.
||
|-
| dendrogeomorphology<ref>{{Citation |last1=Stoffel |first1=M. |chapter=12.9 Dendrogeomorphology: Dating Earth-Surface Processes with Tree Rings |date=2013-01-01 |title=Treatise on Geomorphology |pages=125–144 |editor-last=Shroder |editor-first=John F. |chapter-url=https://www.sciencedirect.com/science/article/pii/B9780123747396003262 |access-date=2025-06-11 |place=San Diego |publisher=Academic Press |doi=10.1016/b978-0-12-374739-6.00326-2 |isbn=978-0-08-088522-3 |last2=Luckman |first2=B. H. |last3=Butler |first3=D. R. |last4=Bollschweiler |first4=M.|chapter-url-access=subscription }}</ref>|| The science that uses [[dendrochronology]] to study changes to the [[Earth's surface]] over time.
||
|-
| dendrohydrology<ref>{{Cite journal |last1=Loaiciga |first1=Hugo A. |last2=Haston |first2=Laura |last3=Michaelsen |first3=Joel |date=May 1993 |title=Dendrohydrology and Long-Term Hydrologic Phenomena |url=https://agupubs.onlinelibrary.wiley.com/doi/10.1029/93RG00056 |journal=Reviews of Geophysics |language=en |volume=31 |issue=2 |pages=151–171 |doi=10.1029/93RG00056 |bibcode=1993RvGeo..31..151L |issn=8755-1209 |via=AGU|url-access=subscription }}</ref>|| The science that uses [[dendrochronology]] to investigate and reconstruct [[hydrology|hydrologic]] processes, such as river flow and past lake levels.
||
|-
| [[dendrology]] || The study of [[trees]].
||
|-
| [[dendropyrochronology]] || The use of tree rings to study and reconstruct the history of [[wild fires]].
||
|-
| [[deontology]] || The study of the nature of duty and obligation.
||
|-
| [[dermatology]] || The study of [[skin]].
||
|-
| [[dermatopathology]] || A subspecialty of [[dermatology]] and [[pathology]] and to a lesser extent surgical pathology that focuses on the study of cutaneous (skin) diseases at a microscopic and molecular level.
||
|-
| dermatovenerology<ref>{{Cite book |last=Prohic |first=Asja |url=https://link.springer.com/book/9783031661303 |title=Dermatovenerology Textbook |publisher=Springer |year=2024 |isbn=978-3-031-66130-3 |language=en}}</ref>|| The study of [[skin disease]] and [[sexually transmitted disease]] and how symptoms of [[STD's]] appear on the skin.
||
|-
| dermonosology<ref>Venes, Donald, editor. "[https://www.tabers.com/tabersonline/view/Tabers-Dictionary/766787/all/dermonosology Dermonosology]." ''Taber's Medical Dictionary'', 24th ed., F.A. Davis Company, 2021. ''Taber's Online'',</ref>|| The science of [[nomenclature]] and classification of [[skin diseases]].
||
|-
| desmidiology<ref>“[[mwod:desmidiology|Desmidiology]].” ''Dictionary.'' [[Merriam-Webster]]. via Merriam-Webster.com. Accessed 24 September 2024.</ref>|| The study of single-celled [[algae]].
||
|-
| [[desmology]] || The study of [[ligaments]].
||
|-
| [[Diabetes|diabetology]] || The study of [[Diabetes mellitus]].
||
|-
| diabology<ref>“[[mwod:desmidiology|Desmidiology]].” ''Dictionary.'' [[Merriam-Webster]]. Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The study of the [[devil]] and beliefs of the devil in religion.
||
|-
| style="background: #ffdead"|dicaeology<ref>“[[doi:10.1093/OED/2694217501|Dicaeology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>{{Efn|name=Field of Study}}|| An excuse or justification.
||
|-
| [[dialectology]] || The scientific study of linguistic [[dialect]], a sub-field of [[sociolinguistics]].
||
|-
| [[dinosaurology]] || The branch of [[paleontology]] that focuses on studying [[dinosaurs]].
||
|-
| diplomatology<ref>“[[doi:10.1093/OED/4669870584|Diplomatology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| 
#The analysis of original texts or documents.
#The study of [[diplomats]].
#The study of [[diplomatics]].
||
|-
| [[dipterology]] || The study of flies (order [[Diptera]]).
||
|-
| style="background: #ffdead"|dittology<ref>“[[doi:10.1093/OED/7841839810|Dittology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref><sup>[[{{FULLPAGENAME}}#Z|{{Efn|name=Field of Study}}]]</sup> || A double reading or twofold interpretation of a text.
||
|-
| [[docimology]]<ref>“[[doi:10.1093/OED/4341618408|Docimology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study or act of scientific testing or [[assaying]] metals and [[ore]]s.
||
|-
| [[documentology]]||
#The study of the recording and retrieval of information.
#The study of historical documents and data.
||
|-
| dogmatology<ref>“[[doi:10.1093/OED/7438922025|Dogmatology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of religious [[dogma]].
||
|-
| dosiology<ref name=":0">“[[doi:10.1093/OED/3845949798|Dosiology | Dosology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of dosages of [[drugs]].
||
*dosology
*[[posology]]
|-
| dosology<ref name=":0" />|| The study of dosages of drugs.
||
*dosiology
*posology
|-
| style="background: #ffdead"|[[doxology]]<sup>[[{{FULLPAGENAME}}#Z|{{Efn|name=Field of Study}}]]</sup> || A short [[hymn]] of praises to [[God]] in various forms of [[Christianity|Christian]] worship, often added to the end of [[canticle]]s, [[psalms]], and hymns.
||
|-
| [[draconology]] || The study of dragons.
||
*dragonology
|-
| [[dragonology]] || The study of dragons.
||
*draconology
|-
| [[dramatology]] || The practice of viewing all symptoms as valid communications, including words, posture, tone of voice, and movements of the face and limbs; introduced by [[Henry Zvi Lothane]].
||
|-
|[[Dravidology]] || The study of the [[Dravidian languages]], literature and [[Dravidian culture|culture]].
||
|-
| [[dronology]] || A genre of music which heavily utilizes [[Drone (music)|drones]]. Also used to describe the use of drones in music.
||
|-
| style="background: #ffdead"|[[wikt:duology|duology]]<sup>[[{{FULLPAGENAME}}#Z|{{Efn|name=Field of Study}}]]</sup> || A pair of related novels, plays, or movies.
||
|-
| [[dysmorphology]] || The study of abnormalities of physiological development.
||
*teratology
|-
| [[dysteleology]] || The [[philosophy|philosophical]] view that [[existence]] has no ''[[telos (philosophy)|telos]]'' or [[Four causes|final cause]] from purposeful design.
||
|}

==E==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[ecclesiology]] || The theological study of the [[Christian Church]].
||
|-
| [[eccrinology]] || The study of the secretion of the [[eccrine]] [[gland]]s.
||
|-
| echinology<ref>“[[mwod:echinology|Echinology]].” ''Dictionary,'' [[Merriam-Webster]]. ''via'' Merriam-Webster.com .Accessed 24 September 2024.</ref>|| The study of [[echinoderms]].
||
|-
| [[ecohydrology]] || The study of the interactions between water and ecosystems.
||
|-
| [[ecology]] || The scientific study of interactions among organisms and their environment.
||
|-
| [[ecophysiology]] || The study of the adaptation of an organism's physiology to environmental conditions.
||
*environmental physiology
*physiological ecology
|-
| [[ecopsychology]] || The study of the relationship between human beings and the natural world through ecological and psychological principles.
||
|-
| [[ecotoxicology]] || The study of the effects of [[toxic]] [[chemicals]] on [[biological]] [[organisms]], especially at the [[population biology|population]], [[biological community|community]], [[ecosystem]] level.
||
|-
| [[edaphology]] || A [[soil science]] concerned with the influence of soils on living things, particularly plants.
||
|-
| [[editology]] || 
#An [[epistemological]] system that seeks to "define the knowledge as a set of texts, discourses (and thus terms), and to assign the scientificity of those texts to the very conditions of their publishing, the manner they are accepted by the international scientific community" developed by [[Jean C. Baudet]].
#The study of editing.
||
|-
| [[eidology]]<ref>"[https://www.thefreedictionary.com/eidology eidology]." ''-Ologies & -Isms''. The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The study of [[mental imagery]].
||
|-
| [[Egyptology]] || The study of [[ancient Egypt]]ian [[History of Egypt|history]], [[Egyptian language|language]], [[Ancient Egyptian literature|literature]], [[Ancient Egyptian religion|religion]], [[Ancient Egyptian architecture|architecture]] and [[Art of ancient Egypt|art]] from the 5th millennium BC until the end of its native religious practices in the 4th century AD.
||
|-
| electrobiology<ref>“[https://www.merriam-webster.com/medical/electrobiology Electrobiology].” ''Medical Dictionary''. [[Merriam-Webster]]. via Merriam-Webster.com . Accessed 24 September 2024.</ref>|| The study of the production and use of electricity by biological organisms.
||
|-
| [[electrology]] ||
#The practice and study of electrical [[epilation]] to permanently remove human hair.
#The branch of physical science that deals with electricity and its properties.
||
|-
| [[electrophysiology]] || The study of the electrical properties of biological cells and tissues.
||
|-
| style="background: #ffdead"|[[electrotechnology]]<sup>[[{{FULLPAGENAME}}#Z|{{Efn|name=Field of Study}}]]</sup> || The technological and industrial applications of electricity.
||
|-
| emblematology<ref>“[[doi:10.1093/OED/1356295155|Emblematology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[emblems]].
||
|-
| [[embryology]] || The branch of [[biology]] that studies the development of [[gametes]] (sex cells), [[fertilization]], and development of [[embryo]]s and [[fetus]]es.
||
|-
| [[emetology]] || The study of the causes of [[emesis]] (vomiting).
||
|-
| emmenology<ref>“[[doi:10.1093/OED/2542044199|Emmenology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[menstruation]].
||
|-
| emotionology<ref>Stearns, Peter N., and Carol Z. Stearns. “[[doi:10.2307/1858841|Emotionology: Clarifying the History of Emotions and Emotional Standards]].” ''The American Historical Review'' 90, no. 4 (1985): 813–36, accessed September 14, 2024.</ref>|| 
#The way a group of people think and speak about their emotions.
#The multidisciplinary study of emotions.
||
|-
| encephalology<ref>“[[doi:10.1093/OED/1696258702|Encephalology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, September 2024.</ref>|| The study of the [[brain]] and its function, structure, and anatomy, and diseases.
||
|-
| endemiology<ref>{{Cite web |title=endemiology |url=https://www.oxfordreference.com/display/10.1093/oi/authority.20110803095750983 |access-date=2024-09-14 |website=Oxford Reference |language=en }}</ref>|| The study of [[Endemic (epidemiology)|endemic diseases]].
||
|-
| [[endocrinology]] || A branch of biology and medicine dealing with the [[endocrine system]], its diseases, and its specific secretions known as [[hormone]]s.
||
|-
| engysseismology<ref>“[[mwod:engysseismology|Engysseismology]].” ''Dictionary'', [[Merriam-Webster]]. via Merriam-Webster.com. Accessed 24 September 2024.</ref>|| The branch of [[seismology]] that deals with earthquake shocks registered in or near the region of disturbance.
||
|-
| [[enigmatology]] || The study of [[puzzles]].
||
*metagrobology
|-
| [[enology]] || The study of [[wines]].
||
*oenology
|-
| enteradenology<ref>“[[doi:10.1093/OED/2354780014|Enteradenology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, September 2024.</ref>|| The study of the [[gastrointestinal tract]] and glands.
||
|-
| [[enterology]] || The study of the [[intestinal tract]].
||
|-
| [[entomology]] || The scientific study of [[insects]], a branch of [[zoology]].
||
|-
| entozoology<ref>“[[doi:10.1093/OED/5212480538|Entozoology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of entozoa, a type of microscopic [[parasitic worm]].
||
|-
| [[enzymology]] || The branch of science that studies [[enzymes]].
||
|-
| [[epidemiology]] || The study and analysis of the [[pattern]]s, [[cause]]s, and effects of [[health]] and [[disease]] conditions in defined [[Population (human biology)|population]]s.
||
|-
| [[epileptology]] || The branch of [[neurology]] that studies [[epilepsy]].
||
|-
| epiphytology<ref>“[[mwod:epiphytology|Epiphytology]].” ''Dictionary'', [[Merriam-Webster]]. via Merriam-Webster.com. Accessed 24 September 2024.</ref>|| The study of the character, ecology, and causes of [[plant diseases]], especially [[wikt:Special:Search/epiphytotic|epiphytotic]] outbreaks.
||
|-
| [[epistemology]] || The branch of philosophy concerned with the theory of [[knowledge]].
||
|-
| [[epizootiology]] || The study of disease patterns within animal populations.
||
*epizoology
*veterinary epidemiology
|-
| [[equinology]] || The study of [[horses]].
||
*hippology
|-
| eremology<ref>“[[mwod:eremology|Eremology]].” ''Dictionary'', [[Merriam-Webster]]. via Merriam-Webster.com. Accessed 24 September 2024.</ref>|| The study of [[deserts]].
||
|-
| ergology<ref>{{Cite book |last1=Denami |first1=Maria |title=Handbook of Research on Operational Quality Assurance in Higher Education for Life-Long Learning |last2=Marquet |first2=Pascal |publisher=Information Science Reference |year=2019 |isbn=9781799812388 |page=25 |chapter=Fancy or Efficiency?: Which Are the Guidelines for an Effective Training on VLEs? A Crash Case in Anti-Cancer Pharmaceutical Production |doi=10.4018/978-1-7998-1238-8.ch014}}</ref>||
#The study of the psychological effects of work, or work patterns, especially the causes of work-related stress (job stress).
#In [[ethnology]], knowledge originating from the study of the object culture of non-European traditional societies.
||
|-
| erotology<ref>“[https://www.merriam-webster.com/medical/erotology Erotology].” ''Medical Dictionary.'' [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 24 Sep. 2024.</ref>|| The study of [[sexual stimuli]] and behavior.
||
|-
| style="background: #ffdead"|[[Ertology]]{{Efn|name=Field of Study}}|| Fan activities based on [[Ertar]], an alternative reality project, created by a group of Czech science fiction fans.
||
|-
|[[escapology]]
|The practice or study of escaping from restraints or other traps; escape art.
|
|-
| [[eschatology]] || A part of [[theology]] concerned with the final events of history, or the ultimate destiny of humanity.
||
|-
| [[Eskimology]] || A complex of [[humanities]] sciences [[Area studies|studying]] languages, history, literature, folklore, culture, and ethnology of people speaking [[Eskimo–Aleut languages]] and [[Eskimo]] ([[Inuit]]–[[Yupik peoples|Yupik]])–[[Aleut]] peoples in chronological and comparative context.
||
*inuitology
|-
| [[Esperantology]] || The study of [[Esperanto]].
||
|-
| [[ethnoarcheology]]{{efn|name=fn3}} || The [[ethnographic]] study of people for archeological reasons, usually through the study of the material remains of a society.
||
|-
| [[ethnobiology]] || The scientific study of the way living things are treated or used by different human cultures.
||
|-
| [[ethnoecology]] || The scientific study of how different groups of people living in different locations understand the [[ecosystems]] around them, and their relationships with surrounding environments.
||
|-
|[[ethnoichthyology]]
|The branch of [[anthropology]] that examines human knowledge of fish, the uses of fish, and the importance of fish in different human societies.
|
|-
| [[ethnology]] || The branch of [[anthropology]] that compares and analyzes the characteristics of different people and the relationship between them.
||
|-
| [[ethnomethodology]] || The study of methods people use for understanding and producing the [[social order]] in which they live.
||
|-
| [[ethnomusicology]] || The study of the music of different cultures and their cultural contexts, especially non-Western ones.
||
|-
| [[ethnomycology]] || The study of the historical uses and sociological impact of [[fungi]].
||
|-
| [[ethnopsychology]] || The study of alternative perceptions of the mind and its behavior.
||
|-
| [[ethology]] || The scientific and objective study of non-human animal behavior rather than human behavior, usually with a focus on behavior under natural conditions, and viewing behavior as an evolutionarily adaptive trait.
||
|-
| [[etiology]] ||
#The study of causation, or origination.
#The causes of diseases or pathologies.
||
*aetiology
*ætiology
*aitiology
|-
| [[etruscology]] || The study of the ancient Italian civilization of the [[Etruscans]].
||
|-
| [[etymology]] || The study of the history of words, their origins, and how their form and [[Meaning (linguistics)|meaning]] have changed over time.
||
|-
| style="background: #ffdead"|[[euchology]]{{Efn|name=Field of Study}}|| One of the chief [[liturgical book]]s of the [[Eastern Orthodox Church]] and [[Eastern Catholic Churches]], containing the portions of the services which are said by the [[bishop]], [[priest]], or [[deacon]].
||
|-
| [[exoarcheology]]{{efn|name=fn3}} || Argued to be the same as [[xenoarcheology]], a fictional science concerned with the physical remains of alien cultures. It may also mean the study of human activities in a space environment.
||
|-
| [[exobiology]] || The branch of biology dealing with [[extraterrestrial lifeform]]s.
||
*astrobiology
|-
| [[exogeology]] || A [[planetary science]] discipline concerned with the [[geology]] of the [[celestial bodies]] such as the [[planet]]s and their [[Natural satellite|moon]]s, [[asteroid]]s, [[comet]]s, and [[meteorite]]s.
||
*astrogeology
*planetary geology
|-
|[[exometeorology]] || The study of [[Atmosphere|atmospheric]] conditions of [[exoplanet]]s and other non-stellar [[Astronomical object|celestial bodies]] outside the [[Solar System]], such as [[brown dwarf]]s.
||
|-
| [[exomoonology]] || The search for and study of [[exomoons]].
||
|-
| [[exoplanetology]] || An integrated field of astronomical science dedicated to the search and study of [[exoplanets]] (extrasolar planets).
||
|}

==F==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| fairyology<ref>“[[doi:10.1093/OED/4043964320|Fairyology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[fairies]].
||
|-
| faunology<ref>“[[doi:10.1093/OED/5762100198|Faunology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The branch of zoology that deals with the geographical distribution of animals.
||
*[[zoogeography]]
|-
| [[felinology]] || The study of [[cats]].
||
|-
| fermentology<ref>[[mwod:fermentology|“Fermentology]].” ''Dictionary''. [[Merriam-Webster]],. ''via'' Merriam-Webster.com. Accessed 26 Sep. 2024.</ref>|| The study of ferments and [[fermentation]].
||
*[[zymology]]
|-
| [[ferroequinology]] || The study of railways in general, but especially locomotives.
||
|-
|festology<ref>“[[doi:10.1093/OED/7301069655|Festology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, September 2024.</ref>
|A type of [[martyrology]] that studies ecclesiastical festivals.
|
*festilogy
|-
| [[fetology]] || The scientific study of [[fetuses]].
||
*foetology
|-
| [[filicology]] || The study of [[fern]]s.
||
|-
| filmology<ref>{{Citation |last1=Kuhn |first1=Annette |chapter=filmology |date=2012-12-20 |title=A Dictionary of Film Studies |chapter-url=https://www.oxfordreference.com/display/10.1093/acref/9780199587261.001.0001/acref-9780199587261-e-0288#:~:text=filmology%20(filmologie)&text=An%20academic%20movement%20established%20in,of%20...%20... |access-date=2024-09-13 |publisher=Oxford University Press |language=en |doi= |isbn=978-0-19-958726-1 |last2=Westwell |first2=Guy}}</ref>|| A 1940s movement of theoretical study relating to film.
||
* filmologie
|-
| [[flatology]] || The study of [[flatulence]].
||
|-
| fluviology<ref>[[doi:10.1093/OED/1999842743|“Fluviology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, September 2024.</ref>|| The study of [[watercourse]]s or [[river]]s.
||
|-
| fluviomorphology<ref>"[https://encyclopedia2.thefreedictionary.com/fluviomorphology fluviomorphology]." ''McGraw-Hill Dictionary of Scientific & Technical Terms, 6th edition.'' The McGraw-Hill Companies, Inc.,  2003. via The Free Dictionary by Farlex, accessed September 26, 2024.</ref>|| The study of a river channel and the network of [[Tributary|tributaries]] within the [[River Basin|river basin]].
||
*[[Fluvial Geomorphology|fluvial geomorphology]]
*[[river morphology]]
|-
| fontology<ref>{{Cite web |title=Definition of fontology |url=https://www.webster-dictionary.org/definition/fontology |access-date=2024-09-14 |website=Webster's Online Dictionary}}</ref>|| The study of [[fonts]], or electronic typefaces.
||
|-
| [[formicology]] || The study of [[ants]].
||
*myrmecology
|-
| fossilology<ref>“[[doi:10.1093/OED/1088718307|Fossilology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[fossils]].
||
* [[paleontology]]
|-
| fromology<ref>"[https://www.thefreedictionary.com/fromology fromology]." ''-Ologies & -Isms.'' The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed 26 September 2024.</ref>||The study of [[cheese]].
||
|-
| [[fulminology]] || The study of [[lighting]]
||
|-
| [[fungology]] || The study of [[fungi]].
||
*[[mycology]]
|-
| [[futurology]] || The study of postulating possible, probable, and preferable futures and the worldviews and myths that underlie them.
||
|}

==G==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| galvanology<ref>“[[doi:10.1093/OED/3964875980|Galvanology, ''N'']]''.''” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023,.</ref>|| The study of [[galvanism]] (of biology, physics, and chemistry).
||
|-
| [[gametology]] || The study of [[gametes]].
||
|-
| [[garbology]] || The study of modern refuse and [[waste|trash]] as well as the use of trash cans, compactors, and various types of trash can liners.
||
|-
| [[gastroenterology]] || The branch of medicine focused on the [[digestive system]] and its disorders.
||
*[[gastrology]]
|-
| [[gastrology]] || The branch of medicine focused on the [[digestive system]] and its disorders.
||
*gastroenterology
|-
| [[gelotology]] || The study of [[humour]] and [[laughter]].
||
|-
| [[gemology]] ||  The scientific study dealing with natural and artificial [[gemstone]] materials.
||
*gemmology
|-
| [[genecology]] || A branch of [[ecology]] which studies the [[gene frequency]] of a species relating to their [[population distribution]] in a particular environment.
||
|-
| genesiology<ref>“[[doi:10.1093/OED/7883827852|Genesiology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[reproduction]].
||
|-
| [[geoarcheology]]{{efn|name=fn3}} || A multi-disciplinary approach which uses the techniques and subject matter of [[geography]], [[geology]] and other [[Earth science]]s to examine topics which inform [[archaeology|archeological]] knowledge and thought.
||
*geoarchæology
|-
| [[geobiology]] || An [[interdisciplinary]] field of [[scientific research]] that explores interactions between the [[biosphere]] and the [[lithosphere]] and/or the [[Celestial body atmosphere|atmosphere]].
||
|-
| [[geochronology]] || The [[science]] of determining the age of [[rock (geology)|rocks]], [[fossil]]s, and [[sediment]]s using signatures inherent in the rocks themselves.
||
|-
| [[geoecology]] || The interdisciplinary study of [[geography]] and [[ecology]].
||
|-
| [[geohydrology]] || The area of [[geology]] that deals with the distribution and movement of [[groundwater]] in the [[soil]] and [[rock (geology)|rocks]] of the Earth's [[crust (geology)|crust]] (commonly in [[aquifer]]s).
||
*hydrogeology
|-
| [[geology]] || 
#An [[earth science]] comprising the study of [[solid Earth]], the [[rock (geology)|rocks]] of which it is composed, and the processes by which they change.
#The study of the solid features of any [[celestial body]] (such as the [[geology of the Moon]] or [[Geology of Mars|Mars]]).
#The geological features of an area.
||
|-
| [[geomorphology]] || The scientific study of the origin and evolution of [[Topography|topographic]] and [[Bathymetry|bathymetric]] features created by physical, chemical, or biological processes operating at or near the Earth's surface.
||
|-
| [[geomythology]] || The study of alleged references to geological events in [[mythology]].
||
|-
| geotechnology<ref>“[[mwod:geotechnology|Geotechnology]].” ''Dictionary'', [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 September 2024.</ref>|| The study of how earth, rock, and subterranean water affect the planning, execution, and operation of engineering projects.
||
|-
| geotectology<ref>“[[mwod:geotectology|Geotectology]].” ''Dictionary'', [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26Septemberr 2024.</ref>|| The study of the structure of the [[Earth's crust]]; geotectonics.
||
*[[structural geology]]
|-
| gephyrology<ref>{{Cite web |date=2015-06-29 |title=Taking architectural history to the bridge: International Bridges Group inaugural meeting report |url=https://medievalartresearch.com/2015/06/29/international-bridges-group-inaugural-meetings/ |access-date=2024-09-13 |website=Medieval Art Research |language=en}}</ref>|| A [[neologism]] for the study of [[bridges]] and naturally occurring arches or bridge like structures.
||
|-
| [[geratology]] || The study of elderly people and [[senility]]; [[geriatrics]].
||
*gerontology
|-
| gerodontology<ref>{{Cite web |date=2023-04-24 |title=Gerodontology |url=https://www.nature.com/collections/ihdfhbiegd |access-date=2024-09-13 |website=Nature |language=en}}</ref>|| The study of [[dentistry]] in elderly people.
||
|-
| [[gerontology]] || The study of the [[social]], [[Psychology|psychological]], [[cognitive]], and [[Biology|biological]] aspects of [[Ageing|aging]]; [[geriatrics]]
||
*geratology
|-
| [[ghostology]] || The learning, teaching, knowledge, or study of [[ghosts]], spirits, and the supernatural; [[ghostlore]].
||
|-
| gigantology<ref>“[[doi:10.1093/OED/7866267648|Gigantology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, December 2023.</ref>|| The study or description of [[giant]]s.
||
|-
|gizmology<ref>{{Cite web |title=The Gizmology Group |url=https://www.gizmology.com/#:~:text=giz.mol.o.gy,of%20Gizmology%20in%20Vancover,%20BC. |access-date=2025-06-11 |website=www.gizmology.com}}</ref><ref>{{Cite web |title=Definition of 'gizmology' |url=https://www.collinsdictionary.com/us/dictionary/english/gizmology |access-date=September 13, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref>
|The study and practice of creating and using complex devices or gadgets. 
|
|-
| [[glaciology]] || The scientific study of [[glaciers]], or more generally, ice and natural phenomena that involve ice.
||
|-
| [[glossology]] ||
#The study of the [[tongue]] and its diseases.
#The definition and explanation of terms in constructing a [[glossary]].
#The scientific study of [[language change]] over time; historical linguistics.
||
|-
| [[glottochronology]] || The study of languages to determine when they diverged from being the same language.
||
|-
| [[glottology]] || The study of [[languages]]; [[linguistics]]
||
|-
| [[glycobiology]] || The study of the structure, [[biosynthesis]], and biology of [[Saccharide (disambiguation)|saccharide]]s ([[sugar]] chains or [[glycans]]) that are widely distributed in nature.
||
|-
| [[glyptology]] || The study or art of [[Engraved gem|engraving gems]] or [[glyptics]].
||
|-
| [[gnathology]] || The study of the [[mastication|masticatory system]].
||
|-
| gnomology<ref>“[[mwod:gnomology|Gnomology]].” ''Dictionary'', [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 September 2024.</ref>|| An anthology of [[gnomic poetry]] or gnomes.
||
|-
| gnomonology<ref>“[[doi:10.1093/OED/7224256189|Gnomonology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[gnomonics]].
||
|-
| [[gnoseology]] || The scientific or philosophical study of knowledge.
||
*gnosiology
|-
| [[gnosiology]] || The scientific or philosophical study of knowledge.
||
*gnoseology
|-
| [[gnotobiology]] || The study of animals in a germ-free environment
||
|-
| [[googology]] ||The mathematical study of large numbers.
||
|-
| [[graminology]] || The scientific study of the grasses (family ''[[Poaceae]]'').
||
*agrostology
|-
| [[grammatology]] || The scientific study of [[writing systems]] or scripts.
||
|-
| [[graphology]] || The analysis of the physical characteristics and patterns of [[handwriting]] purporting to be able to identify the writer.
||
|-
| graphopathology<ref>"[https://www.thefreedictionary.com/graphopathology graphopathology.]" ''-Ologies & -Isms''. The Gale Group, Inc., 2008. ''via'' The Free Dictionary by Farlex. Accessed 26 September 2024.</ref>|| The study of handwriting as a symptom of mental or emotional disorder.
||
|-
| [[gynecology]] || The medical practice dealing with the health of the [[female reproductive system]]s ([[vagina]], [[uterus]] and [[ovaries]]) and the [[breasts]].
||
*gynæcology
*gynaecology
|-
| [[gynoroentgenology]] || The study of [[radiologic]] imaging of the [[gynecologic]] parts of the [[female]] [[human body]] in order to make a [[radiologic]] [[diagnosis]] of a gynecologic disease.
||
*gynecological roentgenology
*gynæcological roentgenology
*gynaecological roentgenology
|}

==H==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[hemorheology]]{{efn|name=fn2}} || The study of flow properties of blood and its elements of [[blood plasma|plasma]] and [[blood cells|cells]].
||
*blood rheology
|-
|[[hagiology]]
|A study or biography of a [[saint]] or an [[ecclesiastical]] leader; a [[hagiography]].
|
|-
| [[hamartiology]] || The branch of [[Christian theology]] that studies [[sin]].
||
|-
| [[hamburgerology]]|| A course of study introduced by [[McDonald's]] to train people to work in its fast food restaurants.
||
|-
| style="background: #ffdead"|[[haplology]]{{Efn|name=Field of Study}}|| In linguistics, the elimination of a [[syllable]] when two consecutive identical or similar syllables occur.
||
|-
| [[hauntology]] || In [[Jacques Derrida|Derridan]] philosophy, the paradoxical state of the specter, which is neither being nor non-being.
||
|-
| [[hedonology]] || The study of the impact an injury or incident had on a person's lifestyle.
||
|-
| helcology<ref>Venes, Donald, editor. "[https://www.tabers.com/tabersonline/view/Tabers-Dictionary/744059/all/helcology Helcology]." ''[[Taber's Medical Dictionary]]'', 24th ed., F.A. Davis Company, 2021. ''Taber's Online''.</ref>|| The study of [[ulcers]].
||
|-
| [[heliology]] || The study of the [[sun]].
||
|-
| [[helioseismology]] ||  The study of the propagation of wave oscillations, particularly acoustic [[P-wave|pressure waves]], in the [[Sun]].
||
|-
| [[helminthology]] || The study of parasitic worms (''[[helminths]]'').
||
|-
| [[hematology]]{{efn|name=fn2}} || The branch of medicine concerned with the study, diagnosis, treatment, and prevention of diseases related to [[blood]].
||
|-
| hemerology<ref>“[[doi:10.1093/OED/1159835761|Hemerology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[calendars]].
||
|-
| [[hemipterology]] || The study of [[true bugs]] (order ''[[Hemiptera]]'').
||
|-
| [[hemopathology]] || The branch of [[pathology]] which studies diseases of [[hematopoietic]] cells.
||
|-
| [[henology]] || The [[philosophy|philosophical]] account or discourse on "The One" that appears most notably in the philosophy of [[Plotinus]].
||
|-
| [[heortology]] || The study of [[religious festival]]s.
||
|-
| [[hepaticology]] || The study of [[hepatics]] (division ''[[Marchantiophyta]]'').
||
|-
| [[hepatology]] || The branch of medicine that incorporates the study of [[liver]], [[gallbladder]], [[biliary tree]], and [[pancreas]] as well as management of their disorders.
||
|-
| [[herbology]] || The study of the use of plants for medicinal purposes; herbal medicine/[[herbalism]].
||
*herbalogy
|-
| [[heresiology]] || The study of [[heresy]].
||
|-
| [[herpetology]] || The branch of [[zoology]] concerned with the study of [[amphibian]]s (including [[frog]]s, [[toad]]s, [[salamander]]s, [[newt]]s, and caecilians ([[gymnophiona]])) and [[reptile]]s (including [[snake]]s, [[lizard]]s, [[amphisbaenia|amphisbaenids]], [[turtle]]s, [[terrapin]]s, [[tortoise]]s, [[crocodilia]]ns, and the [[tuatara]]s).
||
|-
| style="background: #ffdead"|heterology<ref>[https://www.merriam-webster.com/medical/heterology “Heterology].” ''Medical Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 September 2024.</ref>{{Efn|name=Field of Study}}|| 
#A lack of correspondence between parts that reflects a difference in origin.
#An abnormality or structural difference from what is considered normal.
||
|-
| hexicology<ref name=":1">"[https://www.thefreedictionary.com/hexicology hexicology.]" ''-Ologies & -Isms''. The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed  26 September 2024.</ref>|| The study of the relations of living creatures to other organisms, and to their surrounding conditions.
||
*hexiology
|-
| hexiology<ref name=":1" />|| The study of the relations of living creatures to other organisms, and to their surrounding conditions.
||
*hexicology
|-
| [[hieroglyphology]] || The study of [[hieroglyphics]].
||
|-
| [[hierology]] || [[Religious text|Sacred literature]] or [[Folklore|lore]] or the study of it.
||
|-
| [[hippology]] || The study of [[horses]].
||
*equinology
|-
| hippopathology<ref>“[[mwod:hippopathology|Hippopathology]].” ''Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 September 2024.</ref>|| The study of the diseases and treatment or [[pathology]] of the [[horse]].
||
|-
| [[histology]] || The study of the [[anatomy|microscopic anatomy]] of [[cell (biology)|cells]] and [[tissue (biology)|tissues]] of [[plant]]s and [[animal]]s.
||
|-
| [[histopathology]] || The [[light microscope|microscopic]] examination of [[Tissue (biology)|tissue]] in order to study the manifestations of [[disease]].
||
|-
| histophysiology<ref>“[[mwod:histophysiology|Histophysiology]].” ''Dictionary'', [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 September 2024.</ref>|| The physiology or study of the functions of the cells and tissues in health.
||
|-
| [[historiology]] || The study of [[history]].
||
|-
| [[histotechnology]] || The study of the processes and procedures used in the preparation of slides for [[light microscopy]].
||
|-
| [[Hittitology]] || The study of the [[Hittites]].
||
|-
| [[hodology (disambiguation)|hodology]] || The study of pathways.
#([[neuroscience]]) The study of the interconnections of brain cells.
#(psychology) A term introduced by [[Kurt Lewin]] (1890–1947) to describe paths in a person's "life space".
#(philosophy) The study of interconnected ideas.
#(geography) The study of [[Course (navigation)|paths]].
||
|-
| Homerology<ref>“[[mwod:Homerology|Homerology]].”  ''Dictionary'', [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 September 2024.</ref>|| The study of the poet [[Homer]] and his works.
||
|-
| [[Homoeology]] || The study of homoeologs, genes that originated by [[speciation]] but were brought back together in the same [[genome]] by allopolyploidization.
||
|-
| [[Homology (disambiguation)|homology]] ||
#([[Homology (anthropology)|anthropology]] and archeology). A type of analogy whereby two human beliefs, practices, or artifacts are separated by time but share similarities due to [[genetics|genetic]] or historical connections.
#(specifically [[anthropology]]) A structure that is shared through descent from a common ancestor.
#([[Homology (biology)|biology]]) The existence of shared ancestry between a pair of structures, or genes, in different species.
#(chemistry) The appearance of [[Homologous series homologs]], a compound belonging to a series of compounds differing from each other by a repeating unit.
#([[Homology (mathematics)|mathematics]], especially algebraic topology and abstract [[Homological algebra|algebra]]) A general way of associating a sequence of algebraic objects such as [[abelian groups]] or [[Module (mathematics)|modules]] to other mathematical objects such as topological spaces.
#([[Homology (psychology)|psychology]]) A relationship between characteristics that reflects the characteristics' origins in either evolution or development.
#([[Homology (sociology)|sociology]]) A structural resonance between the different elements making up a socio-cultural whole.
||
|-
| [[hoplology]] || A science that studies human combative behavior and performance.
||
|-
| hormonology<ref>“[https://www.merriam-webster.com/medical/hormonology Hormonology].” ''Medical Dictionary''. [[Merriam-Webster]]. via Merriam-Webster.com.  Accessed 26 Sep. 2024.</ref>|| The science or study of [[hormones]].
||
|-
| [[horology]] || The art or science of measuring time and mechanical time-keeping devices.
||
|-
| [[humorology]] || 
#The study of [[humour]] and laughter.
#[[Humorism]]
||
|-
| [[hydrobiology]] || The science of life and life processes in water.
||
|-
| hydroecology<ref>{{Cite journal |last1=Palmer |first1=Margaret A. |last2=Bernhardt |first2=Emily S. |date=2006 |title=Hydroecology and river restoration: Ripe for research and synthesis |url=https://onlinelibrary.wiley.com/doi/abs/10.1029/2005WR004354 |journal=Water Resources Research |language=en |volume=42 |issue=3 |doi=10.1029/2005WR004354 |issn=1944-7973}}</ref>|| The study of support systems in [[wetland]]s such as the interactions between water and wildlife habitats.
||
|-
| [[hydrogeology]] || The area of [[geology]] that deals with the distribution and movement of [[groundwater]] in the [[soil]] and [[rock (geology)|rocks]] of the Earth's [[crust (geology)|crust]] (commonly in [[aquifer]]s).
||
*geohydrology
|-
| [[hydrology]] ||
#The scientific study of the movement, distribution, and quality of water on Earth and other planets, including the [[hydrologic cycle]], [[water resources]], and environmental watershed sustainability.
#(agriculture) The study of water balance components intervening in [[farm water|agricultural water]] management, especially in [[irrigation]] and [[drainage]]; [[agricultural hydrology]].
||
|-
| [[hydrometeorology]] || A branch of [[meteorology]] and [[hydrology]] that studies the transfer of water and energy between the land surface and the lower atmosphere.
||
|-
| hyetology<ref>“[[mwod:hyetology|Hyetology]].” ''Dictionary.'' [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed September 26, 2024.</ref>|| The scientific study of [[precipitation]].
||
|-
| hygiology<ref>“[[doi:10.1093/OED/1864933015|Hygiology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The science and study of the preservation of health.
||
|-
| [[hygrology]] || 
#The study of [[bodily fluids]].
#The study of [[humidity]].
||
|-
| hylology<ref>“[[doi:10.1093/OED/1141500625|Hylology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, June 2024.</ref>|| The doctrine or theory that matter is unorganized.
||
|-
| hymenopterology<ref>“[[mwod:hymenopterology|Hymenopterology]].” ''Dictionary.'' [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 Sep. 2024.</ref>|| The study of the order ''[[Hymenoptera]]''.
||
|-
| [[hymnology]] || The scholarly study of religious song, or the [[hymn]].
||
|-
| [[hypnology]] || The scientific study of [[sleep]].
||
*somnology
|}

==I==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[iamatology]] || The study of medicinal remedies or [[therapeutics]].
||
*aceology
|-
| iatrology<ref>“[[doi:10.1093/OED/5758771236|Iatrology, N.]]” ''[[Oxford English Dictionary]].'' Oxford University Press, July 2023.</ref>|| The study of [[medicine]].
||
|-
| ichnolithology<ref>“[[doi:10.1093/OED/3141678389|Ichnolithology, N]].” ''[[Oxford English Dictionary]].'' Oxford University Press, July 2023.</ref>|| The branch of geology and biology that deals with traces of organismal behavior, such as footprints and [[burrow]]s.
||
*ichnology
|-
| [[ichnology]] || The branch of [[geology]] and [[biology]] that deals with traces of organismal behavior, such as footprints and [[burrow]]s.
||
*ichnolithology
|-
| [[ichthyology]] || The branch of biology devoted to the study of [[fish]].
||
|-
| [[iconology]] || 
#A method of interpretation in cultural history and the history of art used by [[Aby Warburg]], [[Erwin Panofsky]], and their followers that uncovers the cultural, social, and historical background of themes and subjects in the visual arts.
#The study of visual imagery and its symbolism and interpretation, especially in social or political terms.
||
|-
|[[ideology]]
|
# A collection of doctrines or beliefs shared by members of a group.
# The study of the origin and nature of ideas.
|
|-
| idiomatology<ref>“[[doi:10.1093/OED/6934335232|Idiomatology, N]].” ''[[Oxford English Dictionary]].'' Oxford University Press, July 2023.</ref>|| A collection of [[idioms]].
||
|-
| idiomology<ref>“[[mwod:idiomology|Idiomology]].” ''Dictionary'', [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 September 2024.</ref>|| The study of idiom, [[jargon]], or dialect.
||
|-
| idiopsychology<ref>“[[doi:10.1093/OED/1085858726|Idiopsychology, N]].” ''[[Oxford English Dictionary]].'' Oxford University Press, September 2024.</ref>|| The [[psychology]] of one's own mind.
||
|-
| [[imagology]] || The study of [[Ethnic stereotype|cultural stereotypes]] as presented in literature.
||
|-
| [[immunohematology]]{{efn|name=fn2}} || The study of the relationships between disorders of the blood and the immune system, especially [[antigen]]-[[antibody]] interaction.
||
|-
| [[immunology]] || A branch of [[biomedical science]] that covers the study of [[immune system]]s in all [[organism]]s.
||
|-
| [[immunopathology]] || The branch of medicine that deals with immune responses associated with disease.
||
|-
| [[implantology]] || The science of or techniques involved in [[dental implants]].
||
|-
| [[Indology]] || The academic study of the [[History of India|history]] and [[Culture of India|cultures]], [[Languages of India|languages]], and literature of the [[Indian subcontinent]] (most specifically the modern-day states of [[India]], [[Pakistan]], [[Bangladesh]], [[Sri Lanka]], [[Maldives]], [[Nepal]] and the eastern parts of [[Afghanistan]])
||
|-
| [[infectiology]] || The study of the diagnosis, treatment, and control of [[infections]] and infectious diseases.
||
*infectology
|-
| [[insectology]] || The study of [[insects]].
||
*entomology
|-
| [[Inuitology]] || A complex of [[humanities]] sciences [[Area studies|studying]] languages, history, literature, folklore, culture, and ethnology of people speaking [[Eskimo–Aleut languages]] and [[Eskimo]] ([[Inuit]]–[[Yupik peoples|Yupik]])–[[Aleut]] peoples in chronological and comparative context.
||
*[[eskimology]]
|-
| [[Iranology]] || An interdisciplinary field dealing with the study of history, literature, art, and culture of [[Iranian peoples]].
||
|-
| [[irenology]] || The study of [[peace]].
||
|-
| [[iridology]] || An [[alternative medicine]] technique whose proponents claim that patterns, colors, and other characteristics of the [[iris (anatomy)|iris]] can be examined to determine information about a person's health; iridodiagnosis.
||
|-
| [[Islamology]] || The study of [[Islam]].
||
|}

==J==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[Japanology]] || The study of [[Japan]], its [[Japanese language|language]], [[Culture of Japan|culture]], and [[History of Japan|history]].
||
|-
| [[Jinology]] || The study of [[Jin Yong]]'s novels.
||
|}

==K==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[karstology]] || The study of [[karst]] formations.
||
|-
| [[karyology]] || The study of the [[Cell nucleus|nuclei]] of cells, especially with regard to the [[chromosomes]] which they contain.
||
|-
| style="background: #ffdead"|[[Kibology]]{{Efn|name=Field of Study}}|| A [[parody religion]], named after [[James Parry (Usenetter)|James "Kibo" Parry]], the central figure.
||
|-
| [[killology]] || The study of the psychological and physiological effects of killing and combat on the [[human psyche]].
||
|-
| [[kinesiology]] ||  The scientific study of human body movement and its physiological, mechanical, and psychological mechanisms.
||
|-
| kinology<ref>[[doi:10.1093/OED/6045925036|“Kinology, N]].” ''[[Oxford English Dictionary]].'' Oxford University Press, July 2023.</ref>|| The branch of physics that deals with the [[laws of motion]].
||
|-
| [[koniology]] || The study of atmospheric dust and its effects.
||
*coniology
|-
| [[kookology]] || The study of kooks, or eccentric people.
||
|-
| [[Koreanology]] || The study of [[Korea]].
||
|-
| [[Kremlinology]] ||
#The study of the internal politics of the high members of the government of the [[USSR]].
#The study of the internal politics of any powerful and secretive organization.
||
|-
| [[ktenology]] || The science of putting people to death, execution.
||
|-
| [[Stanley Kubrick|Kubrickology]] || The study of [[Stanley Kubrick]] and [[Filmography and awards of Stanley Kubrick|his works]].
||
|-
| [[kymatology]] || The study of [[wave motion]].
||
|}

==L==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| lalopathology<ref>"[https://www.thefreedictionary.com/lalopathology lalopathology]." ''-Ologies & -Isms''. 2008. The Gale Group, Inc. ''via'' The Free Dictionary by Farlex. Accessed 26 September 2024.</ref>|| The study of [[speech disorders]].
||
|-
| [[laryngology]] || A branch of [[medicine]] that deals with disorders, [[disease]]s and [[Trauma (medicine)|injuries]] of the [[vocal apparatus]], especially the [[larynx]].
||
|-
| lectinology<ref>Osterne, Vinicius, J. S.; Nascimento, Kyria S.; Cavada, Benildo S.; Van Damme, Els J. M. "[[doi:10.1016/j.bbadva.2025.100145|The future of plant lectinology: Advanced technologies and computational tools]]." ''BBA Advances'', vol. 7, 2025, 100145. ISSN 2667-1603. doi.org/10.1016/j.bbadva.2025.100145.</ref>|| The study of [[lectin]].
||
|-
| [[lemology]] || The study of [[plague (disease)|plague]] and epidemic diseases.
||
*loimology
*epidemiology
|-
| [[lepidopterology]] || A branch of [[entomology]] concerning the scientific study of [[moth]]s and the three [[Superfamily (biology)|superfamilies]] of [[butterfly|butterflies]].
||
|-
| [[leprology]] || The study of [[leprosy]].
||
|-
| leptology<ref>“[[mwod:leptology|Leptology]].” ''Dictionary.'' [[Merriam-Webster]]. ''via'' Merriam-Webster.com Accessed 26 Sep. 2024.</ref>||
#A minute and tedious discourse on trifling things.
#The study of the forms and structures of crystals; [[crystallography]].
||
|-
| [[lexicology]] || The part of [[linguistics]] which studies words.
||
|-
| [[lichenology]] || The branch of [[mycology]] that studies the [[lichen]]s, [[symbiotic]] [[organism]]s made up of an intimate symbiotic association of a microscopic [[alga]] (or a [[Cyanobacteria|cyanbacterium]]) with a [[Hypha|filament]]ous [[fungus]].
||
|-
| [[limacology]] ||  The branch of zoology which deals with [[slugs]].
||
|-
| limnobiology<ref>{{Cite web |date=2009 |title=limnobiology {{!}} Dictionary of ichthyology |url=https://en_ichthyology.en-academic.com/10235/limnobiology |access-date=2025-06-11 |website=Academic Dictionaries and Encyclopedias |language=en}}</ref>|| The branch of biology that deals with animals and plants of [[fresh water]].
||
|-
| [[limnology]] || The study of inland waters.
||
|-
| [[lipidology]] || The scientific study of [[lipids]].
||
|-
| lithoidology<ref>"[https://www.thefreedictionary.com/lithoidology lithoidology]." ''-Ologies & -Isms''. The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed 26 September 2024.</ref>|| The study of [[rock (geology)|rock]]s.
||
|-
| [[lithology]] || 
#The study of rocks, with particular emphasis on their description and classification.
#The description of the physical characteristics of a rock.
||
|-
| [[liturgiology]]|| The study of [[liturgy]], a set of rituals that are performed, usually by a religion; [[liturgics]].
||
|-
| [[Logology (disambiguation)|logology]] ||
#The field of [[recreational linguistics]], an activity that encompasses a wide variety of word games and wordplay.
#The study of all aspects of science (the science of science)
#The study of words [[Logology (theology)|in search for divine truth]].
#The study of [[logo]]s.
#The part of linguistics that studies words.
||
5. lexicology
|-
| loimology<ref>“[[doi:10.1093/OED/5916183201|Loimology, N]].” ''[[Oxford English Dictionary]].'' Oxford University Press, July 2023.</ref>|| The study of [[Infection|pestilential]] diseases and plagues.
||
*lemology
*epidemiology
|-
| [[ludology]] || The study of [[games]].
||
|-
| [[lymphology]] || The study of the [[lymphatic system]].
||
|}

==M==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| macrocosmology<ref name=":2">“[[doi:10.1093/OED/5044186628|Macrocosmology, N.]]” ''[[Oxford English Dictionary]].'' Oxford University Press, July 2023.</ref>|| The study or description of the [[macrocosm]].
||
|-
| [[macroecology]] || The subfield of [[ecology]] that deals with the study of relationships between organisms and their environment at large spatial scales.
||
|-
| style="background: #ffdead"|macrology<ref>“[[mwod:macrology|Macrology]].” ''Dictionary.'' [[Merriam-Webster]]. ''via'' Merriam-Webster.comAccessed 26 Sep. 2024.</ref>{{Efn|name=Field of Study}}|| Verbose, meaningless talk; [[pleonasm]].
||
|-
| macrometeorology<ref>{{Cite web |title=Definition of 'macrometeorology' |url=https://www.collinsdictionary.com/dictionary/english/macrometeorology |access-date=September 20, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref>|| The study of large-scale behavior of the [[atmosphere]].
||
|-
| macromorphology<ref>{{Cite web |date=2024-11-29 |title=Macromorphology: Significance and symbolism |url=https://www.wisdomlib.org/concept/macromorphology |access-date=2025-06-11 |website=Wisdom Library |language=en}}</ref>|| The gross structures or [[morphology (biology)|morphology]] of an organism, [[mineral]], or soil component visible with the unaided eye or at very low levels of magnification.
||
|-
| magirology<ref>“[[doi:10.1093/OED/2540680857|Magirology, N.]]” ''[[Oxford English Dictionary]].'' Oxford University Press,  July 2023.</ref>|| The study of [[cooking]].
||
|-
| [[malacology]] || The branch of [[invertebrate]] [[zoology]] that deals with the study of [[Mollusca]].
||
|-
| [[malacostracology]] || The study of [[crustacean]]s.
||
*carcinology
*crustaceology
*crustalogy
|-
| [[malariology]] || The study of [[malaria]].
||
|-
| mantology<ref>“[[mwod:mantology|Mantology]].” ''Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 September 2024.</ref>|| [[Divination]]
||
|-
| [[mapology]] || The study of [[maps]]; cartography.
||
|-
| [[Mariology]] || The [[theology|theological]] study of [[Mary (mother of Jesus)|Mary]], the mother of [[Jesus]].
||
|-
| [[martyrology]] ||
# A study of martyrs and martyrdom
#(Catholicism) Acataloge or list of [[martyr]]s and other [[saint]]s and [[beatification|beati]] arranged in the calendar order of their anniversaries or feasts.
#(Judaism) The ten [[rabbi]]s living during the era of the [[Mishnah]] who were [[martyr]]ed by the [[Roman Empire|Romans]] in the period after the [[Siege of Jerusalem (70)|destruction of the second Temple]].
||
|-
| [[Breast|mastology]] || The study of [[breasts]].
||
|-
| style="background: #ffdead"|mateology<ref>"[https://www.thefreedictionary.com/Mateology Mateology]." ''Webster's Revised Unabridged Dictionary''. G. & C. Merriam Co., 1913. ''via'' The FreeDictionaryy by Farlex. Accessed 26 September 2024.</ref>{{Efn|name=Field of Study}}|| A vain, unprofitable discourse or inquiry.
||
|-
| mazology<ref>“[[doi:10.1093/OED/9911641354|Mazology, N.]]” ''[[Oxford English Dictionary]].'' Oxford University Press, July 2023.</ref>|| The study of [[mammal]]s.
||
*mammalogy
|-
| meconology<ref>"[https://www.thefreedictionary.com/meconology meconology]." ''-Ologies & -Isms''. The Gale Group, Inc., 2008. ''via'' The Free Dictionary by Farlex. 26 September 2024.</ref>|| The study of [[opium]] and its effects.
||
|-
| [[melissopalynology]] || The study of [[pollen]] contained in [[honey]] and, in particular, the pollen's source.
||
|-
| [[melittology]] || A branch of [[entomology]] concerning the scientific study of [[bees]] (clade ''Anthophila'').
||
|-
| [[membranology]] || The study of [[membrane]]s.
||
|-
| style="background: #ffdead"|[[menology]]{{Efn|name=Field of Study}}|| A service-book used in the [[Eastern Orthodox Church]] and those [[Eastern Catholic Churches]] which follow the [[Rite of Constantinople]]; a [[menologium]] or menologe.
||
|-
| [[mereology]] || In logic and philosophy,  the study of parts and the wholes they form.
||
|-
| [[mesology]] || 
#The scientific analysis and study of interactions among organisms and their environment.
#The environmental or sociological influence on a person.
||
1. ecology
|-
| [[mesometeorology]] || The study of [[weather]] systems smaller than [[synoptic scale]] systems but larger than [[Microscale meteorology|microscale]] and [[storm-scale]] [[Cumulus cloud|cumulus]] systems.
||
*mesoscale meteorology
|-
| [[metagrobology]] || The study of puzzles.
||
*enigmatology
|-
| [[metallogeny]] || The study of the genesis and regional-to-global distribution of [[Ore deposit|mineral deposits]], with emphasis on their relationship in space and time to regional [[petrology|petrologic]] and [[tectonic]] features of the [[Earth's crust]].
||
|-
| [[metapsychology]] || A speculative psychology that seeks to understand the structure of the mind in terms that may not be [[Empirically verified|empirically verifiable]].
||
|-
| [[meteorology]] || The study of the atmosphere and related phenomena such as [[weather]].
||
|-
| [[methodology]] || The systematic, theoretical analysis of the methods applied to a field of study; the study of methods.
||
|-
| [[metrology]] || The science and study of [[measurement]].
||
|-
| miasmology<ref>“[[doi:10.1093/OED/9216663830|Miasmology, N]].” ''[[Oxford English Dictionary]].'' Oxford University Press, September 2024.</ref>|| 
*The study of [[fog]] and [[smog]].
*The study of the [[miasma theory]].
||
|-
| [[microbiology]] || The study of [[microorganisms]].
||
|-
| [[microclimatology]]|| A branch of [[climatology]] that studies [[microclimates]] which are small, local regions having a unique pattern of weather or weather effects that differ from the local climate.
||
|-
| [[microecology]] || 
#The ecology of [[microbes]].
#The ecology of a [[microhabitat]].
||
|-
| style="background: #ffdead"|microhomology<ref>{{Cite journal |last1=Ottaviani |first1=Diego |last2=LeCain |first2=Magdalena |last3=Sheer |first3=Denise |date=2014-03-01 |title=The role of microhomology in genomic structural variation |journal=Trends in Genetics |volume=30 |issue=3 |pages=85–94 |doi=10.1016/j.tig.2014.01.001 |issn=0168-9525|doi-access=free |pmid=24503142 }}</ref>{{Efn|name=Field of Study}}|| The presence of the same short sequence of [[Nucleobase|bases]] in different [[genes]].
||
|-
| micrology<ref>“[https://www.merriam-webster.com/medical/micrology Micrology].” ''Medical Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 Sep. 2024.</ref>|| 
#The study of [[microscopes]].
#The science of preparing microscopic objects for study.
#The study of [[trivia]]lities or things of little importance.
||
|-
| [[micrometeorology]] || The study of short-lived [[atmospheric]] phenomena smaller than [[Mesoscale meteorology|mesoscale]], about 1 kilometre (0.6&nbsp;mi) or less.<ref>{{cite web | url=http://amsglossary.allenpress.com/glossary/search?query=micrometeorology | title=AMS Glossary of Meteorology | work=Micrometeorology | accessdate=2008-04-12 | publisher=[[American Meteorological Society]] | url-status=dead | archiveurl=https://web.archive.org/web/20110606101802/http://amsglossary.allenpress.com/glossary/search?query=micrometeorology | archivedate=2011-06-06 }}</ref>{{sfn|Foken|2017|p=2}}
||
*microscale meteorology
|-
| micromorphology<ref>{{Cite web |title=Micromorphology |url=https://www.soils.org/membership/divisions/soil-mineralogy/micromorphology/ |access-date=September 20, 2024 |website=Soil Science Society of America}}</ref>|| Study of soil sat a microscopic level
||
|-
| [[micropaleontology]]{{efn|name=fn1}} || The branch of [[paleontology]] that studies [[microfossil]]s, or fossils that require the use of a microscope to see the organism, its [[Morphology (biology)|morphology]] and its characteristics details.
||
|-
| [[micropatriology]] ||
#The study of [[micronation]]s, political entities that claim independence and mimic acts of sovereignty but lack legal recognition.
#The study of [[microstate]]s, [[sovereign state]]s that have a very small population or land area—usually both.
||
*micro patrology
|-
|[[microtechnology]]
|The study of technology features near one [[micrometre]] in size.
|
|-
| style="background: #ffdead"|[[misology]]{{Efn|name=Field of Study}}|| The hatred or fear of reasoning or argument.
||
|-
| [[missiology]] || The area of [[practical theology]] that investigates the mandate, message, and mission of the [[Christianity|Christian]] church, especially the nature of [[missionary]] work.
||
|-
| [[Bartender|mixology]] || The art of combining various ingredients to make [[cocktails]].
||
|-
| mociology<ref>{{Cite journal |last1=Pecujlija |first1=M. |last2=Cosic |first2=I. |date=2018 |title=Mociology, Serbian Contributions to It |url=https://www.daaam.info/Downloads/Pdfs/science_books_pdfs/2018/Sc_Book_2018-005.pdf |journal=DAAAM International Scientific Book |volume=17 |pages=51–64|doi=10.2507/daaam.scibook.2018.05 |isbn=978-3-902734-19-8 }}</ref>|| The study of human behavior in a mobile world and the study of [[mobile device]]/phone lifestyles.
||
|-
| [[molinology]] || The study of [[Mill (grinding)|mills]] and other mechanical devices that use the energy of moving water or wind, or the strength of animal or human muscle to power machines.
||
|-
| momiology<ref>“[[doi:10.1093/OED/3410902832|Momiology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, September 2024.</ref>|| The study of [[mummies]].
||
|-
| [[monadology]] || The study of theory of [[Monad (philosophy)|monads]].
||
|-
| style="background: #ffdead"|[[monology]]{{Efn|name=Field of Study}}|| The habit of soliloquizing, or of monopolizing conversation.
||
|-
| [[montology]] || The study of [[mountains]].
||
*orology
|-
| style="background: #ffdead"|morology<ref>“[[doi:10.1093/OED/2141364510|Morology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>{{Efn|name=Field of Study}}|| Foolish talk, nonsense.
||
|-
| [[morphology (disambiguation)|morphology]] || The study of the forms of things.
#([[Morphology (archaeology)|archeology]]) The study of shapes and forms (of [[Artifact (archaeology)|artifacts]]), and their grouping into time periods.
#([[Morphology (astronomy)|astronomy]]) The study of the shape of astronomical objects such as [[nebulae]], [[galaxies]], or other extended objects.
#([[Morphology (biology)|biology]]) A branch of [[biology]] dealing with the study of the form and structure of organisms and their specific structural features.
#([[Morphology (folkloristics)|folkloristics]]) The structure of narratives such as folk tales.
#([[Morphology (linguistics)|linguistics]]) The study of the structure and content of word forms.
#([[Mathematical morphology|mathematics]]) A theory and technique for the analysis and processing of [[Geometry|geometrical]] structures, based on [[set theory]], [[lattice theory]], [[topology]], and [[random function]]s.
#([[Urban morphology]]) The study of the form, structure, formation, and transformation of human settlements.
#([[materials science]]) The study of shape, size, texture, and phase distribution of physical objects.
#([[Morphology (architecture and engineering)|architecture and engineering]]) The study of two-dimensional and three-dimensional symmetries, and then uses these geometries for planning buildings and structures.
#(social) The study of the form and structure of society.
#(ideological) The study of the conceptual structure of [[ideologies]], and the rules defining the admissibility of meanings into concepts.
||
|-
| [[morphonology]] || The branch of [[linguistics]] that studies the interaction between [[morphology (linguistics)|morphological]] and [[phonology|phonological]] or [[phonetic]] processes.
||
*morphophonology
|-
| [[muscology]] || The branch of [[botany]] concerned with the scientific study of [[bryophyte]]s ([[moss]]es, [[liverworts]], and [[hornwort]]s).
||
*bryology
|-
| [[museology]] || The study of the designs, organization, and management of [[museums]].
||
|-
| [[musicology]] || The study of [[music]], [[music history]], [[music theory]], or the physical nature of sound.
||
|-
| [[mycetology]] || The study of [[fungi]].
||
*mycology
|-
| [[mycology]] || The branch of [[biology]] concerned with the study of [[fungus|fungi]].
||
*mycetology
|-
| [[mycotoxicology]] || The branch of [[mycology]] that focuses on analyzing and studying the [[toxins]] produced by [[fungi]], known as [[mycotoxins]].
||
|-
| [[myology]] || The study of the [[muscular system]].
||
|-
| [[myriapodology]] || The study of [[myriapods]].
||
|-
| [[myrmecology]] || The branch of [[entomology]] focusing on the scientific study of [[ants]].
||
|-
| [[mythology]] || 
#The study of [[myths]].
#A collection of myths, especially of a specific culture or religion.
||
|}

==N==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[nanotechnology]] || The manipulation of matter on an atomic, molecular, and [[Supramolecular chemistry|supramolecular]] scale. Otherwise accepted as the manipulation of matter with at least one dimension sized from 1 to 100 [[nanometers]].
||
|-
| [[nanotribology]] || A branch of [[tribology]] which studies [[friction]] phenomenon at the nanometer scale.
||
|-
| naology<ref>“[[mwod:naology|Naology]].” ''Dictionary.'' [[Merriam-Webster]]. via Merriam-Webster.com. Accessed 26 September 2024.</ref>|| The study of ecclesiastical or sacred buildings.
||
|-
| [[narratology]] || The theory and the study of [[narrative]] and [[narrative structure]] and the ways that these affect our perception.
||
|-
|[[nasology]]
|Parody classification of noses. The word entered dictionaries as "study of the nose".
|
|-
| [[necrology]] ||
#A church register containing the names of those connected with the church who have died.
#A list of people who have died during a specific period.
#The study of death or the dead.
#A notice of death; an obituary.
||
|-
| [[nematology]] ||  The scientific study of [[nematode]]s.
||
|-
| [[neoichnology]] || The study of footprints and traces of [[extant taxon|extant]] animals.
||
|-
| [[neology]] ||
#The study or art of creating new words or [[neologizing]].
#The act of introducing a new word into a language.
#The holding of novel or rational religious views.
||
|-
| [[neonatology]] || A subspecialty of [[pediatrics]] that consists of the medical care of newborn infants.
||
|-
| neossology<ref>“[[mwod:neossology|Neossology]].” ''Dictionary.'' [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 September 2024.</ref>|| The study of young [[birds]].
||
|-
| [[nephology]] || The study of [[clouds]].
||
|-
| [[nephrology]] || The study of [[kidneys]].
||
|-
| nerterology<ref>“[[doi:10.1093/OED/6905159134|Nerterology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| Any study that pertains to the dead or death.
||
|-
| [[nessology]] || The belief or study of the [[Loch Ness Monster]].
||
|-
| [[neurobiology]] || The study of the [[nervous system]] including the [[brain]].
||
|-
| [[neuroendocrinology]] || The study of the interaction between the [[nervous system]] and the [[endocrine system]].
||
|-
| [[neuroethology]] || The study of animal behavior and its underlying mechanistic control by the nervous system.
||
|-
| neurohypnology<ref>“[[doi:10.1093/OED/1080230137|Neurohypnology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, September 2024.</ref>|| The study or practice of mesmerism or [[hypnotism]].
||
*neurypnology
|-
| [[neurology]] || A branch of medicine dealing with [[neurological disorders]].
||
|-
| [[neuropathology]] || The study of disease of [[nervous system]] tissue.
||
|-
| [[neuropharmacology]] || The study of how drugs affect cellular function in the [[nervous system]].
||
|-
| [[neurophysiology]] || A branch of [[physiology]] and [[neuroscience]] that is concerned with the study of the functioning of the [[nervous system]].
||
|-
| [[neuropsychology]] || The study of the structure and function of the [[brain]] as it relates to specific psychological processes and behaviors.
||
|-
| neuropterology<ref>“[[doi:10.1093/OED/3995745621|Neuropterology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, September 2024.</ref>|| The study of net-winged insects (order ''[[Neuroptera]]'').
||
|-
| [[neuroradiology]] || A subspecialty of [[radiology]] focusing on the diagnosis and characterization of abnormalities of the [[Central nervous system|central]] and [[peripheral nervous system]], [[Vertebral column|spine]], and head and neck using [[neuroimaging]] techniques.
||
|-
| neurypnology<ref name=":3">“[[doi:10.1093/OED/9546381059|Neurypnology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study or practice of mesmerism or [[hypnotism]].
||
*neurohypnology
|-
| nidology<ref>“[[mwod:nidology|Nidology]].” ''Dictionary.'' [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 24 Sep. 2024.</ref>|| The study of birds' nests.
||
*caliology
|-
| [[nomology]] || The study of [[laws]].
||
|-
| [[noology]] || The systematic study and organization of everything dealing with knowing and knowledge.
||
*noölogy
|-
| [[noospherology]] || The systematic study and organization of everything dealing with knowing and knowledge about [[Noosphere]].
||
|-
| nosetiology<ref>"[https://medical-dictionary.thefreedictionary.com/nosetiology nosetiology]." ''Farlex Partner Medical Dictionary''. Farlex, 2012.  ''via'' The Free Dictionary by Farlex. Accessed 24 Sep. 2024</ref>|| The study of the causes of disease.
||
|-
| [[nosology]] || A branch of medicine dealing with the [[Medical classification|classification]] of disease.
||
|-
| nostology<ref>{{Cite web |title=Definition of 'nostology' |url=https://www.collinsdictionary.com/us/dictionary/english/nostology#:~:text=Grammar-,nostology%20in%20American%20English,and%20problems%20of%20aging%3B%20gerontology |access-date=September 24, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref>|| The study of [[senility]] or the mental problems of aging.
||
*gerontology
|-
| [[numerology]] || The study of the purported mystical relationship between numbers and the character or action of physical objects and living things.
||
|-
| [[numismatology]] || The study or collection of money (coins, [[Token coin|tokens]], medals, paper money); [[numismatics]].
||
|}

==O==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[oceanology]] || The branch of [[Earth science]] that studies the [[ocean]]; [[oceanography]].
||
|-
| odology<ref>“[[doi:10.1093/OED/1159401205|Odology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The branch of science that studies [[odic force]].
||
|-
| [[odonatology]] || The study of [[dragonflies]] and [[damselflies]] (order ''[[Odonata]]'').
||
|-
| [[odontology]] ||
#The study of the structure and development of [[teeth]].
#The branch of [[dentistry]] dealing with abnormalities of teeth.
||
|-
| [[oecology]] || The scientific study of interactions among organisms and their environment.
||
*œcology
*ecology
|-
| [[oenology]] || The science and study of all aspects of [[wine]] and [[winemaking]] except for vine-growing and grape-harvesting which pertains to [[viticulture]].
||
*enology
*oinology
|-
| style="background: #ffdead"|[[ohnology]]{{Efn|name=Field of Study}}|| The state of [[paralogous genes]] that have originated by a process of [[Paleopolyploidy|whole-genome duplication]].
||
|-
| [[oinology]] || The science and study of all aspects of [[wine]] and [[winemaking]] except for vine-growing and grape-harvesting which pertains to [[viticulture]].
||
*oenology
|-
| olfactology<ref>“[[mwod:olfactology|Olfactology]].” ''Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The study of [[Odor|smell]].
||
|-
| oligochaetology<ref>“[[mwod:oligochaetology|Oligochaetology]].” ''Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com.  Accessed September 24, 2024.</ref>|| The study of earthworms (class ''[[Oligochaeta]]'').
||
|-
|[[wikt:ology|ology]]
|A subject of study, a branch of knowledge.
|
|-
| ombrology<ref>“[[doi:10.1093/OED/1009290721|Ombrology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[rain]].
||
|-
| omenology<ref>“[[doi:10.1093/OED/1760438067|Omenology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023,.</ref>|| The study of [[omens]], [[divination]].
||
|-
| omnibology<ref>"[https://www.thefreedictionary.com/omnibology omnibology]." ''-Ologies & -Isms''. The Gale Group, Inc.,  2008.  ''via'' The Free Dictionary by Farlex, accessed September 24, 2024.</ref>|| The study of [[motor buses]] or omnibuses.
||
|-
| [[oncology]] || The branch of medicine that deals with the prevention, diagnosis, and treatment of [[cancer]].
||
|-
| [[oneirology]] || The scientific study of [[dreams]].
||
|-
| style="background: #ffdead"|onology<ref>“[[doi:10.1093/OED/7371317403|Onology, N.]]” ''[[Oxford English Dictionary]]''.  Oxford University Press, July 2023.</ref>{{Efn|name=Field of Study}}|| Foolish discourse.
||
|-
| [[onomasiology]] || The branch of [[lexicology]] that deals with concepts and the terms that represent them, in particular contrasting terms for similar concepts, as in a [[thesaurus]].
||
|-
| [[onomatology]] || The study of the origin, history, and use of [[proper names]]; [[onomastics]].
||
|-
| [[ontology]] ||
#(philosophy) The branch of [[metaphysics]] that addresses the nature or essential characteristics of being and of things that exist.
#(philosophy) The theory of a particular philosopher or school of thought concerning the fundamental types of entities in the universe.
#(logic) A logical system involving the theory of classes.
#(computer science) A structure of concepts or entities within a domain, organized by relationships; a [[Systems modeling|system model]].
||
|-
|[[ontotheology]]
|The ontology of God and the [[theology]] of [[being]]. 
|
|-
| onychopathology<ref>Venes, Donald, editor. "[https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/757580/all/onychopathology Onychopathology]." ''[[Taber's Medical Dictionary]]'', 24th ed., F.A. Davis Company, 2021. via ''Nursing Central''.</ref>|| The study of [[nail disease]].
||
|-
| [[oology]] || The study of [[egg]]s, especially those of birds.
||
*oölogy
|-
| [[ophidiology]] || The study of snakes (clade ''[[Ophidia]]'').
||
*ophiology
|-
| [[ophiology]] || The branch of [[herpetology]] dealing with the study of [[snakes]] (clade ''[[ophidia]]'').
||
*ophidiology
|-
| [[ophthalmology]] || The branch of medicine that deals with the anatomy, physiology, and diseases of the [[eye]].
||
|-
| optology<ref>"[https://www.thefreedictionary.com/optology optology]." ''[[Collins English Dictionary|Collins English Dictionary – Complete and Unabridged, 12th Edition]].'' HarperCollins Publishers, 2014. via The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The science of testing eyes for [[lens]]es.
||
|-
| [[orchidology]] || The study of [[orchids]] (family ''[[orchidaceae]]'').
||
|-
| [[organology]] || The study of [[musical instruments]] and their classification.
||
|-
| [[orismology]] || The identification, specification, and description of [[jargon|technical terms]].
||
|-
| [[ornithology]] || A branch of [[zoology]] dealing with the study of [[birds]].
||
|-
| [[orology]] || The study of [[mountains]].
||
*montology
|-
| [[orthology (disambiguation)|orthology]] ||
#([[Orthology (biology)|biology]]) Homologous sequences descended from the same ancestral sequence.
#([[Orthology (language)|language]]) The study of the correct use of words.
||
|-
| [[orthopterology]] || The scientific study of the order [[Orthoptera]].
||
|-
| oryctology<ref>“[[doi:10.1093/OED/4873288439|Oryctology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| 
#The study of things dug out of the Earth, such as minerals and fossils.
#The study of [[fossils]], [[minerals]], and rocks.
#The study of minerals; oryctognosy.
||
|-
| osphresiology<ref>“[[doi:10.1093/OED/8902943485|Osphresiology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>||
#The scientific study of [[Odor|smells]].
#The study of [[osmosis]].
||
|-
| [[osteology]] || The scientific study of [[bone]]s.
||
* bioarchaeology
|-
| osteopathology<ref>“[[mwod:osteopathy|Osteopathy]].” ''Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 24 Sep. 2024.</ref>|| The study of [[Bone disease|diseases of the bone]].
||
|-
| [[otolaryngology]] ||  The branch of medicine that deals with conditions of the ear, nose, and throat (ENT) region.
||
*otorhinolaryngology
|-
| [[otology]] || A branch of [[medicine]] which studies normal and [[Pathology|pathological]] [[anatomy]] and [[physiology]] of the [[ear]] ([[hearing (sense)|hearing]] and [[Vestibular system|vestibular]] [[sensory system]]s and related structures and functions).
||
|-
| [[otorhinolaryngology]] || The branch of medicine that deals with conditions of the ear, nose, and throat (ENT) region.
||
*otolaryngology
|-
| ourology<ref>'[https://www.studylight.org/dictionaries/eng/web/o/ourology.html Ourology]'. Noah Webster's American Dictionary. 1828.</ref>|| The branch of medicine that focuses on surgical and medical diseases of the male and female [[urinary tract]] system and the [[male reproductive organs]].
||
*[[Urology]]
|-
| ovology<ref>“[[doi:10.1093/OED/1707067201|Ovology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>||
#The study of [[egg]]s.
#The study of [[egg cell|ova]].
||
|}

==P==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
|[[pedology]]
|The study of soils in their natural environment.
|
|-
| [[paedology]] || The study of children's behavior and development.
||
|-
| [[paleoalgology]]{{efn|name=fn1}} || The subdiscipline of [[paleobotany]] that deals with the study and identification of fossil [[algae]] and their evolutionary relationships and ecology.
||
*paleophycology
|-
| [[paleoanthropology]]{{efn|name=fn1}} || The scientific study of [[human fossil]]s, and the evolution of modern man.
||
*paleanthropology
|-
| [[paleobiology]]{{efn|name=fn1}} || The study of [[fossil]]s of plants and animals.
||
|-
| [[paleobotany]]{{efn|name=fn1}} || The branch of paleontology that deals with the study of plant fossils.
||
*paleophytology
|-
| [[paleoclimatology]]{{efn|name=fn1}} || The study of climate changes taken on the scale of the entire [[history of Earth]].
||
|-
| paleodendrology<ref>“[[mwod:paleodendrology|Paleodendrology]].” ''Dictionary''. Merriam-Webster. ''via'' Merriam-Webster.com. Accessed September 24, 2024.</ref>{{efn|name=fn1}}|| The branch of [[paleobotany]] that deals with fossil trees.
||
|-
| [[paleoecology]]{{efn|name=fn1}} || The scientific study of reconstructing [[ecosystem]]s in the past using [[fossils]] and subfossils.
||
|-
| [[paleoentomology]]{{efn|name=fn1}} || The study of prehistoric insects.
||
|-
| paleoethnology<ref>[[doi:10.1093/OED/1573940540|“Palaeoethnology | Paleoethnology, N]].” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>{{efn|name=fn1}} || The study of the races of early man.
||
|-
| [[paleogeology]]{{efn|name=fn1}} || The study of ancient geological features.
||
|-
| [[paleohydrology]]{{efn|name=fn1}} || The study of ancient rivers and other hydrological features.
||
|-
| [[paleoichnology]]{{efn|name=fn1}} || The branch of [[ichnology]] concerned with the study of [[trace fossil]]s preserved in ancient rocks.
||
|-
| [[paleoichthyology]]{{efn|name=fn1}} || The study of fossil and ancient fish.
||
*paleichthyology
|-
| [[paleolimnology]]{{efn|name=fn1}} || The study of [[Paleoecology|paleoenvironments]] of inland waters by examination of [[sediment]] and fossils.
||
|-
| paleology<ref>“[[mwod:paleology|Paleology]].” ''Dictionary'', [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed September 24, 2024.</ref>{{efn|name=fn1}} || The study of antiquities.
||
|-
| paleometeorology<ref>“[[doi:10.1093/OED/8102673982|Palaeometeorology | Paleometeorology]]” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>{{efn|name=fn1}} || The meteorology of the Earth's atmosphere during ancient times.
||
|-
| [[paleontology]]{{efn|name=fn1}} || The scientific study of life before, and sometimes including, the start of the [[Holocene Epoch]].
||
* fossilogy
|-
| [[paleopathology]]{{efn|name=fn1}} || The study of diseases in ancient humans.
||
|-
| [[paleopedology]]{{efn|name=fn1}} || The study of [[soil]]s of past geological eras, from quite recent ([[Quaternary]]) to the earliest periods of the [[Earth]]'s history.
||
|-
| [[paleophycology]]{{efn|name=fn1}} || The subdiscipline of paleobotany that deals with the study and identification of fossil algae and their evolutionary relationships and ecology.
||
*paleoalgology
|-
| [[paleophytology]]{{efn|name=fn1}} || The study of ancient plants and plant fossils; paleobotany.
||
|-
| [[paleornithology]]{{efn|name=fn1}} || The study of ancient and prehistoric birds and their evolution.
||
|-
| [[paleotempestology]]{{efn|name=fn1}} || The study of past [[tropical cyclone]] activity using geological proxies as well as historical documentary records.
||
|-
| [[paleozoology]]{{efn|name=fn1}} || The branch of [[paleontology]], [[paleobiology]], or [[zoology]] dealing with the recovery and identification of organisms and the use of these fossils in the reconstruction of prehistoric environments and ancient ecosystems.
||
|-
| [[palynology]] || The study of dust, which more precisely includes contemporary and fossil [[palynomorph]]s, including [[pollen]], [[spores]], [[orbicule]]s, [[dinocysts]], [[acritarchs]], [[chitinozoa]]ns and [[Scolecodonts|scolecodont]]s, together with [[particulate organic matter]] (POM) and [[kerogen]] found in [[sedimentary]] rocks and [[sediment]]s.
||
|-
| pantheology<ref>“[[doi:10.1093/OED/8247857235|Pantheology, N.]]” ''[[Oxford English Dictionary]]'', Oxford University Press, December 2023.</ref>|| A branch of [[theology]] embracing all religions; a complete system covering all gods and religious systems.
||
|-
|pantology<ref>“[[doi:10.1093/OED/3067002941|Pantology, N.]]” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>
|
# A systematic view or survey of all types of knowledge.
# A compendium or encyclopedia of knowledge
|
|-
| [[papyrology]] || The study of ancient literature, correspondence, legal archives, etc., as preserved in manuscripts written on [[papyrus]].
||
|-
| style="background: #ffdead"|[[paradoxology]]{{Efn|name=Field of Study}}|| 
#The use of [[paradoxes]].
#A paradox.
||
|-
| [[parapsychology]] || A field of study concerned with the investigation of [[paranormal]] and psychic phenomena which include [[telepathy]], [[precognition]], [[clairvoyance]], [[psychokinesis]], [[near-death experience]]s, [[reincarnation]], [[apparitional experience]]s, and other paranormal claims.
||
|-
| [[parasitology]] || The study of parasites and how they interact with their [[Host (biology)|hosts]].
||
|-
| [[paremiology]]|| The study of [[proverbs]].
||
|-
| style="background: #ffdead"|parisology<ref>“[[doi:10.1093/OED/9922184377|Parisology, N.]]” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>{{Efn|name=Field of Study}}|| The use of equivocal or ambiguous words.
||
|-
| style="background: #ffdead"|paromology<ref>"[https://www.thefreedictionary.com/paromology paromology]." ''-Ologies & -Isms.'' The Gale Group,   Inc., 2008. ''via'' The Free Dictionary by Farlex. Accessed September 24, 2024</ref>{{Efn|name=Field of Study}}|| A concession to an adversary to strengthen one's argument.
||
|-
| parthenology<ref>“[[doi:10.1093/OED/1944973751|Parthenology, N.]]” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>|| The study of [[virginity]].
||
|-
| [[pathobiology]] || The branch of biology that deals with pathology with greater emphasis on the biological than on the medical aspects.
||
|-
| [[pathology]] ||
#(anatomy) The study of macro and microscopic abnormalities in tissues.
#([[Clinical pathology]]) Medical specialty that is concerned with the diagnosis of disease based on the laboratory analysis of bodily fluids, such as [[blood]], [[urine]].
#(mathematics) Any mathematical phenomenon considered atypically bad or counterintuitive.
#([[Pathological science]]) A process by which the scientific process is distorted through wishful thinking or subjective bias.
#(speech) The area of rehabilitative medicine that treats speech or swallowing impediments.
||
|-
| [[pathophysiology]] || The physiological processes associated with disease or injury, or the study of it.
||
*physiopathology
|-
| [[patrology]] || The study of the early Christian writers who are designated [[Church Fathers]].
||
|-
| [[Pekingology]] || The study of the behavior of the government of the [[People's Republic of China]].
||
*Pekinology
|-
| pelology<ref>"[https://www.thefreedictionary.com/pelology pelology]." [[Collins English Dictionary|''Collins English Dictionary – Complete and Unabridged, 12th Edition'']]. HarperCollins Publishers, 2014. ''via'' The Free Dictionary by Farlex. Accessed 26 September 2024.</ref>|| The study of the therapeutic uses of [[mud]].
||
|-
| [[penology]] || The study of the processes devised and adopted for the punishment and prevention of crime.
||
|-
| style="background: #ffdead"|[[pentology]]{{Efn|name=Field of Study}}|| A series of five related works.
||
|-
| [[perinatology]] || A branch of medicine that focuses on managing health concerns of the mother and [[fetus]] before, during, and shortly after [[pregnancy]]; Maternal-fetal medicine.
||
|-
| [[periodontology]] || The specialty of [[dentistry]] that studies supporting structures of teeth, as well as diseases and conditions that affect them; [[periodontics]].
||
|-
| style="background: #ffdead"|perissology<ref>“[[mwod:perissology|Perissology]].” ''Dictionary'', [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 Sep. 2024.</ref>{{Efn|name=Field of Study}}|| Superfluity of words, verbosity.
||
|-
| [[personology (disambiguation)|personology]] ||
#The assessment of a person's character or personality from outer appearance, especially the face.
#A theory of [[personality psychology]] advanced by [[Henry Murray]] and others.
||
1. physiognomy
|-
| [[pestology]] || The study of [[Pest (organism)|pests]].
||
|-
| [[petrology]] || The branch of geology that studies the origin, composition, distribution, and structure of rocks.
||
|-
| phaenology<ref>"[https://www.thefreedictionary.com/phaenology phaenology]." ''[[Collins English Dictionary|Collins English Dictionary – Complete and Unabridged, 12th Edition]]''. HarperCollins Publishers, 2014. via The Free Dictionary by Farlex. Accessed 26 September 2024.</ref>|| The study of periodic plant and animal life cycle events and how these are influenced by seasonal and interannual variations in climate, as well as habitat factors (such as elevation).
||
*phenology
|-
| phagology<ref>[[doi:10.1093/OED/5916133969|“Phagology, N.]]” ''[[Oxford English Dictionary]]'', Oxford University Press. Accessed September 26, 2024.</ref>|| The study of habits related to eating or feeding.
||
|-
| phantasmology<ref>[[doi:10.1093/OED/1978539405|“Phantasmology, N.]]” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>|| The scientific study of spiritualistic manifestations and of [[Apparition (supernatural)|apparitions]].
||
*spectrology
|-
| [[pharmacoenvironmentology]] || 
#A branch of pharmacology and [[pharmacovigilance]] that deals entry of chemicals or drugs into the environment after elimination from humans and animals as post-therapy.
#The environmental impact of a drug.
||
|-
| [[pharmacology]] || The branch of medicine and biology concerned with the study of drug action.
||
|-
| [[pharology]] || The scientific study of [[lighthouses]] and [[signal light]]s, their construction and illumination.
||
*pharonology
|-
| pharyngology<ref>“[[doi:10.1093/OED/9309607082|Pharyngology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The scientific study of the [[pharynx]] and its diseases.
||
|-
| [[phenology]] || The study of periodic plant and animal life cycle events and how these are influenced by seasonal and interannual variations in climate, as well as habitat factors.
||
|-
| [[phenomenology (disambiguation)|phenomenology]] ||
#May be used to describe [[empirical research]] when used to describe measurement methods in some sciences, or empirical relationships.
#([[Phenomenology (architecture)|architecture]]) An aspect of [[philosophy]] based on the experience of building materials and their sensory properties.
#([[Phenomenology (archaeology)|archeology]]) The use of sensory experiences to view and interpret an archeological site or [[cultural landscape]].
#([[Phenomenology (particle physics)|particle physics]]) A branch of particle physics that deals with the application of theory to high-energy experiments.
#([[Phenomenology (philosophy)|philosophy]]) The philosophical study of the structures of experience and consciousness, or the school of philosophy founded by [[Edmund Husserl]].
#([[Phenomenology (psychology)|psychology]]) The study of subjective experience.
#([[Phenomenology of religion|religion]]) The experiential aspect of religion that describes religious phenomena in terms consistent with the orientation of worshippers.
#([[Phenomenological model|mathematical model]]) A mathematical expression that relates several different empirical observations of phenomena to each other, in a way that is consistent with fundamental theory, but is not directly derived from theory.
||
|-
| pherology<ref>Willey, David. “[http://www.jstor.org/stable/45351964 David Pimentel on the Ecology of Increasing Disease: Population Growth and Environmental Degradation].” ''[[Medicine, Conflict and Survival]]'' vol. 15, no. 3 (1999): 291–94.  .</ref>|| The study of human [[carrying capacity]] of the Earth.
||
|-
| [[philematology]] || The science and study of [[kissing]].
||
|-
| [[philology]] || The study of language in written historical sources.
||
|-
| [[phlebology]] || The medical specialty devoted to the diagnosis and treatment of [[venous]] disorders.
||
*venology
|-
| [[phonology]] || A branch of linguistics concerned with the systematic organization of sounds in languages.
||
|-
| phorology<ref>"[https://www.thefreedictionary.com/phorology phorology]." ''-Ologies & -Isms''.The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed 26 September 2024.

</ref>|| The study of disease carriers and epidemic or [[endemic diseases]].
||
|-
| [[photobiology]] || The scientific study of the interactions of light and living organisms.
||
|-
| photoecology<ref>{{Citation |title=photoecology |work=The Free Dictionary |url=https://encyclopedia2.thefreedictionary.com/photoecology |access-date=2025-06-10}}</ref>|| The study of or application of [[aerial photography]] to [[ecology]] and [[land management]].
||
|-
| photogeology<ref>“[[mwod:photogeology|Photogeology]].” ''Dictionary''. [[Merriam-Webster]]. via Merriam-Webster.com. Accessed 26 September 2024.</ref>|| The study or use of [[aerial photography]] to interpret geologic features.
||
*photogeomorphology
|-
| photogeomorphology<ref>{{Cite journal |last=Miller |first=Victor C. |date=1957 |title=Photogeomorphic Interpretation of the Plains of Western Canada |url=https://archives.datapages.com/data/cspg/data/005/005003/0044.htm |journal=Bulletin of Canadian Petroleum Geology |language=en-US |volume=5 |issue=3 |pages=44–47 |issn=0007-4802}}</ref>|| The study or use of aerial photography to interpret geologic features.
||
*photogeology
|-
| photology<ref>“[[doi:10.1093/OED/7336196049|Photology, N.]]” ''[[Oxford English Dictionary]].'' Oxford University Press, July 2023.</ref>|| The study of [[light]].
||
|-
| [[phraseology]] || The study of set or fixed expressions, such as [[idiom]]s, [[phrasal verb]]s, and other types of multi-word [[lexical unit]]s (often collectively referred to as ''[[phraseme]]s'').
||
|-
| [[phrenology]] || A [[pseudomedicine]] primarily focused on measurements of the human skull, based on the concept that the brain is the organ of the mind and that certain brain areas have localized, specific functions or modules.
||
*craniology
|-
| [[phthisiology]] || The study of or the care, treatment, and study of [[tuberculosis]] of the lung.
||
|-
| [[phycology]] || The scientific study of [[algae]].
||
*algology
|-
| physicology<ref>"[https://www.thefreedictionary.com/Physicology Physicology]." ''Webster's Revised Unabridged Dictionary''. G. & C. Merriam Co., 1913. ''via'' The FreeDictionaryy by Farlex. Accessed 26 September 2024.</ref>|| The study of [[matter]] and its motion and behavior through space and time, along with related concepts such as energy and force; [[physics]].
||
|-
| [[physiology]] || 
#A branch of biology that deals with the functions and activities of life or living matter (as organs, tissues, or cells) and of the physical and chemical phenomena involved.
#The study and description of natural objects.
||
|-
| [[physiopathology]] || The physiological processes associated with disease or injury.
||
*pathophysiology
|-
| phytobacteriology<ref>“[[mwod:phytobacteriology|Phytobacteriology]].” ''Dictionary''. [[Merriam-Webster]]. via Merriam-Webster.com. Accessed 26 September 2024.</ref>|| The study and diagnosis of bacterial diseases of plants.
||
|-
| phytolithology<ref>“[[doi:10.1093/OED/1189512166|Phytolithology, N.]]” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>|| The study of fossil plants.
||
*paleophytology
*phytopaleontology
*paleobotany
|-
| [[phytology]] || The study of [[plants]]; [[botany]].
||
|-
| [[phytomorphology]] || The study of the physical form and external structure ([[morphology (biology)|morphology]]) of plants.
||
*plant morphology
|-
| phytonematology<ref>{{Cite journal |last=Dropkin |first=V. H. |date=September 1988 |title=The Concept of Race in Phytonematology |url=https://doi.org/10.1146/annurev.py.26.090188.001045 |journal=Annual Review of Phytopathology |volume=26 |issue=1 |pages=145–161 |doi=10.1146/annurev.py.26.090188.001045|bibcode=1988AnRvP..26..145D |url-access=subscription }}</ref>|| The study of plant [[nematode]]s.
||
|-
| [[phytopaleontology]]{{efn|name=fn1}} || The study of ancient plants and plant fossils.
||
*paleobotany
*paleophytology
*phytolithology
|-
| [[phytopathology]] || The scientific study of diseases in plants.
||
*plant pathology
|-
| [[phytopharmacology]] || 
#The study of the effects of drugs on plants.
#The study of medicine from plant sources.
||
|-
| phytophenology<ref>{{Cite journal |last=Griffin |first=G. D. |date=1970-11-01 |title=Phytonematology |url=https://academic.oup.com/bioscience/article-lookup/doi/10.1093/bioscience/20.22.1224-a |journal=BioScience |language=en |volume=20 |issue=22 |pages=1224 |doi=10.1093/bioscience/20.22.1224-a |issn=0006-3568|url-access=subscription }}</ref>|| The study of [[phenology]] pertaining to plants.
||
|-
| [[phytophysiology]] || The study of the [[physiology]] of plants.
||
|-
| [[phytosociology]] || The branch of science which deals with [[plant communities]], their composition and development, and the relationships between the species within them.
||
|-
| style="background: #ffdead"|[[piphilology]]{{Efn|name=Field of Study}}|| The creation and use of [[mnemonic]] techniques to remember many digits of the mathematical constant [[pi|{{pi}}]].
||
|-
| piscatology<ref>“[[doi:10.1093/OED/8672491725|Piscatology, N]].” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>|| The study, art, or science of [[fishing]].
||
|-
| pisteology<ref>“[[doi:10.1093/OED/9341453887|Pisteology, N.]]” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>|| The science or study of [[faith]].
||
*pistology
|-
| pistology<ref name=":4">"[https://www.thefreedictionary.com/pistology pistology]." ''-Ologies & -Isms''. The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed 26 September 2024.

</ref>|| The branch of theology dealing with [[faith]].
||
*pisteology
|-
| placentology<ref>{{Cite web |title=Definition of 'placentology' |url=https://www.collinsdictionary.com/us/dictionary/english/placentology |access-date=September 26, 2024 |website=Collins |publisher=Collins English Dictionary}}</ref>|| The study of the [[placenta]].
||
|-
| [[planetology]] || The scientific study of [[planet]]s (including [[Earth]]), [[Natural satellite|moons]], and [[planetary system]]s (in particular those of the [[Solar System]]) and the processes that form them.
||
|-
| [[planktology]] || The study of [[plankton]].
||
|-
| plutology<ref>“[[doi:10.1093/OED/3531017975|Plutology, N]].” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>|| The study of [[wealth]].
||
*aphnology
|-
| [[pneumatology]] || The study of spiritual beings and phenomena, especially the spiritual aspect of human beings and the interactions between humans and [[God]].
||
|-
| [[pneumology]] || The study of the [[respiratory system]] and its organs.
||
*pulmonology
|-
| [[pneumonology]] || The study of the [[respiratory system]].
||
|-
| [[podology]] || The study of the [[feet]].
||
*podiatry
*chiropody
|-
| poenology<ref>"[https://www.thefreedictionary.com/poenology poenology]." ''[[Collins English Dictionary|Collins English Dictionary – Complete and Unabridged, 12th Edition]]''. HarperCollins Publishers, 2014. via The Free Dictionary by Farlex. Accessed 26 September 2024.</ref>|| The study of the processes devised and adopted for the punishment and prevention of crime.
||
*penology
|-
| [[pogonology]] || The study of [[beards]].
||
|-
| [[polemology]] || The study of human conflict and [[war]].
||
|-
| [[politicology]] || A synonym for the academic study of political science. It is infrequently used in English-speaking North America, yet the term is more commonly employed in Europe and elsewhere. [[Political science]].
||
|-
| [[politology]] || The academic branch of political science that focuses on politics. However, this term is not in popular circulation within the U.S., perhaps as it may be confused with the preceding "ology."
||
|-
| polychaetology<ref>{{Cite web |title=International Polychaetology Association |url=http://www.annelida.net/ipa-intr.html |access-date=2025-06-10 |website=www.annelida.net}}</ref>|| The study of worms belonging to the class ''[[Polychaete]]''.
||
|-
| [[pomology]] || A branch of [[botany]] that studies and cultivates fruit.
||
|-
| [[ponerology]] || 
#The study of evil.
#([[Political ponerology|political]]) An interdisciplinary study of social issues.
||
|-
| [[posology]] || The study of the dosages of drugs, especially the determination of appropriate dosages.
||
|-
| [[potamology]] || The study of [[river]]s.
||
|-
| [[praxeology]] || The study of human action based on the notion that humans engage in purposeful behavior, as opposed to reflexive behavior.
||
*[[praxiology]]
|-
| [[primatology]] || The scientific study of [[primates]].
||
|-
| [[proctology]] || The branch of medicine dealing with the [[pathology]] of and surgery upon the [[Large intestine|colon]], [[rectum]], and [[anus]].
||
|-
| projectiology<ref>{{Cite web |date=2023-06-15 |title=Projectiology |url=https://en.iipc.org/projectiology/ |access-date=2025-06-10 |website=Instituto Internacional de Projeciologia e Conscienciologia |language=en-US}}</ref>|| The study of [[out-of-body experience]]s.
||
|-
| promorphology<ref>“[[mwod:promorphology|Promorphology]].” ''Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 26 September 2024.</ref>||
#The study of the organization of the egg, especially concerning the localization of subsequently developed embryonic structures.
#The branch of [[morphology (biology)|morphology]] that studies the forms of organisms from a mathematical point of view.
||
|-
| [[protistology]] || The scientific study of [[protist]]s.
||
|-
| [[protozoology]] || The study of [[protozoa]].
||
|-
| [[psephology]] || A branch of political science which deals with the study and scientific analysis of [[elections]].
||
|-
| style="background: #ffdead"|pseudology<ref>“[[mwod:pseudology|Pseudology]].” ''Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 27 September 2024.</ref>{{Efn|name=Field of Study}}|| Falsehood of speech, the art of lying.
||
|-
| style="background: #ffdead"|psilology<ref>“[[doi:10.1093/OED/6782441075|Psilology, N.]]” ''[[Oxford English Dictionary]].'' Oxford University Press, July 2023.</ref>{{Efn|name=Field of Study}}|| Trivial or vacuous talk.
||
|-
| [[psychobiology]] || 
#The study of the application of principles of biology to the study of physiological, genetic, and developmental mechanisms of behavior in humans and other animals.
#The branch of psychology that interprets psychological phenomena in terms of adaptation to biological, environmental, and other factors.
||
*biological psychology,
*biopsychology
|-
| [[psychoneuroimmunology]] || The study of the interaction between psychological processes and the nervous and immune systems of the human body.
||
*psychoendoneuroimmunology
*psychoneuroendocrinoimmunology
|-
| [[psychology]] || The study of [[behavior]] and [[mind]], embracing all aspects of conscious and unconscious experience as well as thought.
||
|-
| [[psychopathology]] || The scientific study of [[mental disorders]].
||
|-
| [[psychopharmacology]] || The scientific study of the effects drugs have on [[mood (psychology)|mood]], [[sensation (psychology)|sensation]], thinking, and behavior.
||
|-
| [[psychophysiology]] || The branch of [[psychology]] that is concerned with the [[physiological]] bases of psychological processes.
||
|-
| [[psychosociology]] || The study of problems common to [[psychology]] and [[sociology]], particularly the way individual behavior is influenced by the groups the person belongs to.
||
|-
|psychotechnology<ref>“[https://www.merriam-webster.com/medical/psychotechnology Psychotechnology].” via ''Medical Dictionary.'' [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 27 September 2024.</ref>
|
# Applying psychological principles and methods to study behavior in industry
# Using technology in psychological studies
|
|-
| [[pteridology]] || The study of [[fern]]s and other [[pteridophyte]]s.
||
|-
| pterylology<ref>“[[mwod:pterylology|Pterylology]].” ''Dictionary'', [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed September 24, 2024.</ref>|| 
#The branch of ornithology that studies the areas upon which birds grow feathers; pterylography.
#The study of [[pterylosis]].
||
|-
| ptochology<ref>“[[doi:10.1093/OED/1015679565|Ptochology, N.]]” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>|| The study of [[pauperism]] or [[poverty]].
||
|-
| [[pulmonology]] || The study of the [[respiratory system]] and its organs.
||
*pneumology
*respirology
|-
| punnology<ref>“[[doi:10.1093/OED/2990636985|Punnology, N.]]” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>|| The art or practice of making [[pun]]s or [[paronomasia]].
||
|-
| [[pyramidology]] || The study of [[pseudoscientific]] speculations regarding [[pyramids]].
||
|-
| pyretology<ref>“[[doi:10.1093/OED/5992799254|Pyretology, N.]]” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>|| The study of [[fevers]].
||
|-
| pyritology<ref>“[[doi:10.1093/OED/9873734762|Pyritology, N.]]” ''[[Oxford English Dictionary]]'', Oxford University Press, July 2023.</ref>||
#The art of using a blowpipe, and often a charcoal block, to analyze minerals and metal salts.
#The study of [[pyrite]] or the [[pyrite group]].
||
|-
| pyrology<ref>{{Cite web |title=Definition of 'pyrology' |url=https://www.collinsdictionary.com/us/dictionary/english/pyrology |access-date=September 24, 2024 |website=Collins Dictionary}}</ref>|| The scientific study of the effects of heat or flame, often regarding explosives or chemical compounds.
||
|}

==Q==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| quinology<ref>“[[mwod:quinology.|Quinology]].” ''Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 24 Sep. 2024.</ref>|| The science of the cultivation of [[cinchona]] and its use in medicine as [[quinine]].
||
|-
|[[quintology]]
|
* A novel or piece of literature divided into five works.
* The science of five<ref>{{Cite web |title=Quintology |url=https://www.jwpepper.com/quintology-10089642/p |access-date=2025-06-11 |website=www.jwpepper.com |language=en-US}}</ref>
|
*pentalogy
|}

==R==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[rabdology]] || The practice of performing arithmetic using [[Napier's bones]] named after a treatise by [[John Napier]].
||
*rhabdology
|-
| [[raciology]] || The study of [[Race (human categorization)|races]] and ideas trying to justify the beliefs of [[racism]], [[Racialism (racial categorization)|racialism]], and other ideas of classifying individuals of different [[phenotypes]] into discrete races.
||
*racial anthropology
|-
| [[radiobiology]] ||The study of the effect of [[ionizing radiation]] on living things.
||
|-
| [[radioecology]] || The study of the effects of radiation and radioactive substances on ecological communities and natural ecosystems.
||
|-
| [[radiogeology]] ||
#The study of the distribution of [[radioactive elements]] in the [[Earth's crust]].
#A technique of dating materials by examining their radioactivity.
||
|-
| radiohydrology<ref>[https://encyclopedia2.thefreedictionary.com/radiohydrology "radiohydrology]." ''McGraw-Hill Dictionary of Scientific & Technical Terms, 6th edition.'' The McGraw-Hill Companies, Inc., 2003. via ''The Free Dictionary by Farlex''. Accessed 27 September 2024.</ref>|| The study of [[hydrology]] as used in the processing of radioactive materials.
||
|-
| radioimmunology<ref>Larson, S M. “Radioimmunology. Imaging and therapy.” ''[[Cancer (journal)|Cancer]]'' vol. 67,4 Suppl (1991): 1253–60. doi:10.1002/1097-0142(19910215)67:4+<1253::aid-cncr2820671523>3.0.co;2-j</ref>|| The study of [[immunology]] using [[antigens]] or [[antibodies]] labelled with [[radioisotopes]].
||
|-
| [[radiology]] || 
#A [[medical specialty]] that uses [[Medical imaging|imaging]] to diagnose and treat diseases seen within the body.
#The use of radioactive substances in the diagnosis and treatment of disease.
||
*roentgenology
|-
| radiotechnology<ref>“[[mwod:radiotechnology|Radiotechnology]].” ''Dictionary.'' [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 27 September 2024.</ref>|| 
#The technical application of any form of [[radiation]] to industry.
#The technology of a [[radio]].
||
|-
| reactology<ref>“[[mwod:reactology|Reactology]].” ''Dictionary''. [[Merriam-Webster]]. via Merriam-Webster.com. Accessed 27 September 2024.</ref>|| The scientific study of psychological reactions.
||
|-
| [[redology]] || The academic study of [[Cao Xueqin]]'s ''[[Dream of the Red Chamber]]'', one of the [[Four Great Classical Novels]] of China.
||
|-
| [[reflexology]] || 
#An [[alternative medicine]] involving a system of massage and application of pressure used to relieve tension and illness.
#The study and interpretation of behavior in terms of simple and complex reflexes.
||
|-
| [[respirology]] || The study of [[Respiratory disease|diseases]] involving the [[respiratory tract]]. 
||
*pulmonology
|-
| [[retinology]] || The study of the [[Retina]] and its uses and function in the [[Eye]]
||
|-
| [[rhabdology]] || The practice of performing arithmetic using [[Napier's bones]] named after a treatise by [[John Napier]].
||
*rabdology
|-
| [[rheology]] || The study of the flow of matter.
||
|-
| [[rheumatology]] || The study of [[rheumatism|rheumatic disorders]].
||
|-
| [[rhinology]] || The study of the [[nose]], including the [[sinuses]].
||
|-
| rickettsiology<ref>“[https://www.merriam-webster.com/medical/rickettsiology Rickettsiology].” ''Medical Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 27 Sep. 2024.</ref>|| The study of [[rickettsia]].
||
|-
| [[Ripperology]] || The study of [[Jack the Ripper]], an unidentified serial killer
|-
| [[roentgenology]] || The study or use of radiation in the treatment or diagnosis of disease; radiography.
||
*rontgenology
*radiology
*röntgenology
|-
| röntgenology<ref>"röntgenology." ''[https://www.thefreedictionary.com/r%c3%b6ntgenology -Ologies & -Isms]''. The Gale Group, Inc., 2008. ''via'' The Free Dictionary by Farlex. Accessed 27 September 2024.</ref>|| The study or use of radiation in the treatment or diagnosis of disease. Radiography.
||
*rontgenology
*radiology
*roentgenology
|-
| rumpology<ref>{{Cite journal |last=Glass |first=Jeremy |date=August 26, 2021 |title=A Professional Ass Reader Predicted My Future After Examining My Butt |url=https://www.cosmopolitan.com/sex-love/a37406924/psychic-butt-reading-rumpology/ |journal=Cosmopolitan |access-date=September 27, 2024}}</ref>|| The claimed ability to foretell the future by analyzing the characteristics of a person's [[buttocks]].
||
|-
| [[runology]] || The study of the [[Runic alphabet]]s, Runic inscriptions and their history.
||
|}

==S==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| saprobiology<ref>“[[doi:10.1093/OED/4738859962|Saprobiology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of decaying organic matter and animals, [[Saprotroph|saprophytes]], that derive nutrients from it.
||
|-
| sarcology<ref>“[[doi:10.1093/OED/9359815057|Sarcology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of the soft parts of the body which include the studies: [[myology]], [[angiology]], [[neurology]], and [[splanchnology]].
||
|-
| satanology<ref>“[[doi:10.1093/OED/8596516100|Satanology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[Satan]].
||
|-
| [[scatology]] || The study of [[feces]].
||
*coprology
|-
|  style="background: #ffdead"|[[Scientology]]{{Efn|name=Field of Study}}|| A [[Scientology beliefs and practices|body of religious beliefs and practices]] created in 1954 by American [[science fiction]] author [[L. Ron Hubbard]].
||
|-
| [[sclerochronology]] || The study of periodic physical and chemical features in the hard tissues of animals that grow by accretion and the temporal context in which they formed.
||
|-
| [[sclerology]] || The study of the [[sclera]] of the [[eye]].
||
|-
| [[sedimentology]] || The study of natural sediments ([[silt]], [[clay]], and [[sand]]) and of the processes by which they are formed.
||
|-
| [[seismology]] || The scientific study of [[earthquakes]] and the propagation of [[elastic waves]] through the Earth or through other planet-like bodies.
||
|-
| [[Geology of the Moon|selenology]] || The scientific study of the [[moon]].
||
|-
| selenomorphology<ref>{{Cite web |title=Definition of 'selenomorphology' |url=https://www.collinsdictionary.com/us/dictionary/english/selenomorphology |access-date=September 27, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref>|| The study of the lunar surface and landscape.
||
|-
| [[semasiology]] || A discipline within linguistics concerned with the meaning of a word independent of its phonetic expression.
||
|-
| sematology<ref>“[[mwod:sematology|Sematology]].” ''Dictionary''. [[Merriam-Webster]]. via Merriam-Webster.com. Accessed 27 September 2024.</ref>|| 
#The science of language as expressed by signs.
#A branch of linguistics studying the meaning of words; semantics.
||
|-
| [[semiology]] ||
#([[semiotics]]) The study of signs.
#(medicine) The science of the signs or symptoms of disease.
#The art of using signs in signaling.
||1, semeiology

2. symptomatology
|-
| senology<ref>Kubista, E. “[https://pubmed.ncbi.nlm.nih.gov/2402926/ <nowiki>Senologie—Ein Wort wird zum Begriff” [Senology—a word becomes a concept]</nowiki>]. ''Wiener klinische Wochenschrift'' vol. 102,15 (1990): 426–32. via [[PubMed]], [[National Library of Medicine]].</ref>|| The branch of medicine that deals with disorders of the [[breast]].
||
|-
| [[serology]] || The scientific study of [[Serum (blood)|serum]] and other bodily fluids.
||
|-
| [[serpentology]] || The study of [[snakes]].
||
|-
| [[sexology]] || The scientific study of [[human sexuality]], including human sexual interests, behaviors, and functions.
||
|-
| siagonology<ref>[[doi:10.1093/OED/4899667907|“Siagonology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[jawbones]].
||
|-
| sialosemeiology<ref>Venes, Donald, editor. "[https://www.tabers.com/tabersonline/view/Tabers-Dictionary/752587/all/sialosemeiology Sialosemeiology]." [[Taber's Medical Dictionary|''Taber's Medical Dictionary'', 24th edition]]. F.A. Davis Company, 2021. via ''Taber's Online''.</ref>|| The study and analysis of [[saliva]] in medical diagnoses.
||
|-
| [[sindhology]] || The study of the [[History of Sindh|history]], [[Sindhi people|society]], [[Sindhi culture|culture]], and [[Sindhi literature|literature]] of [[Sindh]], a province of [[Pakistan]].
||
|-
| [[sindonology]] || The study of the [[Shroud of Turin]].
||
|-
| [[sinology]] || The academic study of [[China]] primarily through [[Chinese language]], [[Chinese literature|literature]], and [[History of China|history]].
||
|-
| siphonapterology<ref>“[[mwod:siphonapterology|Siphonapterology]].” ''Dictionary''. [[Merriam-Webster]]. via Merriam-Webster.com. Accessed September 28, 2024.</ref>|| The scientific study of fleas and other insects of the order ''[[Siphonaptera]]''.
||
|-
| [[sitiology]] || The study of food, diet, and nutrition; dietetics.
||
|-
| [[sitology]] || The branch of medicine dealing with nutrition and [[dietetics]].
||
*sitiology
|-
| skatology<ref>“[[mwod:skatology|Skatology]].” ''Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 28 Sep. 2024.</ref>|| The study of feces.
||
*scatology
*coprology
|-
| [[sociobiology]] || A field of [[scientific]] study that is based on the hypothesis that [[social behavior]] has resulted from [[evolution]] and attempts to explain and examine social behavior within that context.
||
|-
| [[socioecology]] || The scientific study of how social structure and organization are influenced by an organism's environment.
||
|-
| [[sociology]] || The study of society, human [[social behavior|social interaction]], and the rules and processes that bind and separate people not only as individuals but as members of associations, groups, and institutions.
||
|-
| [[sociophysiology]] ||  An interdisciplinary field of research encompassing sociology and physiology that studies the physiological side of human interrelations.
||
|-
| [[somatology]] || The study or science of the human body's physical nature as a branch of anthropology.
||
|-
| [[somatotypology]] || The study of [[somatotypes]].
||
|-
| [[somnology]] || The scientific study of [[sleep]] and related disorders.
||
|-
| [[sonology]] || The study of sound in a variety of disciplines.
#(medicine) The field of [[radiology]] using [[medical ultrasonography]].
#([[electronic music]]) The use or study of [[Acoustics]], [[electronics]], [[Informatics (academic field)|informatics]], [[musical composition|composition]] and [[psychoacoustics]] in [[electronic music]] and [[computer music]].
#The use of sound for therapeutic and religious purposes.
||
|-
| [[sophiology]] || 
#A [[Philosophy|philosophical]] concept regarding [[wisdom]], as well as a [[Theology|theological]] concept regarding the wisdom of [[God]].
#The science of ideas.
||
|-
| sophology<ref>"[https://dictionary.cambridge.org/dictionary/english/sophrology Definition of sophrology]" ''Cambridge Advanced Learner's Dictionary & Thesaurus. via Cambridge Dictionary. Accessed September 28, 2024.''</ref>|| The study of wisdom.
||
|-
| [[soteriology]] || The study of [[religious doctrine]]s of [[salvation]].
||
|-
| [[Sovietology]] || The study of politics and policies of the [[Soviet Union]] and former communist states.
||
|-
| [[spectrology]] || The study of the interaction between matter and electromagnetic radiation and the analysis of the electromagnetic spectrum.
||
|-
| [[speleology]] || The study of [[caves]] and other [[karst]] features.
||
*spelacology
*spelæology
*spelaeology
|-
| [[spermology]] ||
#The study of [[trivia]].
#The study of [[seeds]].
||
|-
| sphagnology<ref>“[[doi:10.1093/OED/7616182980|Sphagnology, N]].” ''[[Oxford English Dictionary]].'' Oxford University Press, July 2023.</ref>|| The study of [[sphagnum moss]].
||
|-
| [[sphygmology]] || The study of the [[pulse]] and its use in diagnosis of disease.
||
|-
|spinology<ref>Shi, Qi and Yong-Jun Wang. ''Zhong. " History and development of spinology" Journal of Chinese (integrative Medicine'' vol. 1, no. 4 (2003): 304–8, 320. doi:10.3736/jcim20030423. via [[PubMed]].</ref>
|The study of maintaining the alignment of the spine through non-surgical techniques.
|
|-
| [[splanchnology]] || The study of the [[visceral organs]].
||
|-
| splenology<ref>Venes, Donald, editor. "[https://www.tabers.com/tabersonline/view/Tabers-Dictionary/767490/all/splenology Splenology]." [[Taber's Medical Dictionary|''Taber's Medical Dictionary'', 24th edition]]. F.A. Davis Company, 2021. ''Taber's Online'', accessed September 28, 2024.</ref>|| The study of the [[spleen]] and its diseases and functions.
||
|-
| [[spongiology]]<ref>{{Cite web |title=Definition of SPONGIOLOGY |url=https://www.merriam-webster.com/dictionary/spongiology |access-date=2025-04-20 |website=www.merriam-webster.com |language=en}}</ref>|| The study of [[sponge]]s (phylum ''[[Porifera]]'').
||
|-
| stasiology<ref>“[[doi:10.1093/OED/2729681439|Stasiology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[political parties]].
||
|-
| [[stemmatology]] || The study of multiple surviving versions of the same text to reconstruct a lost original; stemmatics.
||
*stemmology
|-
| [[stereology]] || The three-dimensional interpretation of two-dimensional [[Cross section (geometry)|cross sections]] of materials or tissues.
||
|-
| stichology<ref>“[[doi:10.1093/OED/1205644987|Stichology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[Metre (poetry)|poetic metres]].
||
|-
| [[stigmeology]] || The art of [[punctuation]].
||
|-
| [[stomatology]] || The study of the [[mouth]] and nearby organs and their disorders.
||
|-
| storiology<ref>“[[doi:10.1093/OED/2383145932|Storiology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of folklore and legends.
||
|-
|strabismology<ref>Fredrick D. R. "[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1771627/ The History of Strabismology: Hirschberg History of Ophthalmology: The Monographs: von Noorden GK, ed. Belgium: Wayenborgh, 2002]." ''British Journal of Ophthalmology''. vol. 87, no. 4 (2003):518. ''via'' [[PubMed]]. Accessed September 28, 2024.</ref>
|The study of [[strabismus]]
|
|-
| [[stringology]] || The study of algorithms and data structures used for processing text strings in programming and computing.
||
|-
| [[strollology]] || The science of [[strolling]].
||
*promenadology
|-
| stromatology<ref>"[https://www.thefreedictionary.com/Stromatology Stromatology]." ''[[Webster's Revised Unabridged Dictionary]]''. G. & C. Merriam Co., 1913. ''via'' The Free Dictionary by Farlex. Accessed September 28, 2024.</ref>|| The study of stratified rocks.
||
|-
| [[suicidology]] || The scientific study of [[suicidal behaviour]] and [[suicide prevention]].
||
|-
| [[Sumerology]] || The study of the ancient [[Sumer]]ian civilization.
||
|-
| [[symbiology]] || The study of [[symbiosis]].
||
|-
| [[symbology]] || The study of symbols.
#The study of signs and symbols; semiotics.
#([[iconography]]) The branch of art history which studies images.
#(Symbolic anthropology) A diverse set of approaches within cultural anthropology that view culture as a symbolic system that arises primarily from human interpretations of the world.
# An encoding scheme, particularly for barcodes.
||
1. symbolology
|-
| symbolology<ref>"[https://www.thefreedictionary.com/symbolology symbolology]." ''[[Collins English Dictionary|Collins English Dictionary – Complete and Unabridged, 12th Edition]]''. HarperCollins Publishers, 2014. via The Free Dictionary by Farlex. Accessed 28 September 2024.</ref>|| The study or use of symbols.
||
*symbology
|-
| [[symptomatology]] || A set of symptoms characteristic of a medical condition or exhibited by a patient.
||
*symptomology
|-
| [[symptomology]] || A set of symptoms characteristic of a medical condition or exhibited by a patient.
||
*symptomatology
|-
| [[synantherology]] || The study of plants in the family [[Asteraceae]].
||
|-
| synchronology<ref>“[[mwod:synchronology|Synchronology]].” ''Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 28 Sep. 2024.</ref>|| The systematic arrangement of synchronous or contemporaneous events.
||
|-
| [[syndesmology]] || The study of [[ligaments]].
||
|-
| synechology<ref>“[[mwod:synecology|Synecology]].” ''Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed 28 Sep. 2024.</ref>|| The theory of continuity or universal causation.
||
*synechiology
|-
| [[synecology]] || The ecological study of whole plant or animal [[Community (ecology)|communities]].
||
|-
| synoecology<ref>"[https://www.thefreedictionary.com/synoecology synoecology]." ''[[Collins English Dictionary|Collins English Dictionary – Complete and Unabridged, 12th Edition]]''. HarperCollins Publishers, 2014. via The Free Dictionary via Farlex. Accessed 28 September 2024.</ref>|| The study of relationships between species.
||
|-
| synosteology<ref>Venes, Donald, editor. "[https://www.tabers.com/tabersonline/view/Tabers-Dictionary/729202/all/synosteology Synosteology]." [[Taber's Medical Dictionary|''Taber's Medical Dictionary, 24th edition'']]. F.A. Davis Company, 2021. via ''Taber's Online'', accessed September 28, 2024.</ref>|| The study of joints.
||
*arthrology
|-
| [[syphilology]] || The scientific study of the diagnosis and treatment [[syphilis]].
||
|-
| systematology<ref>{{Cite web |title=Definition of 'systematology' |url=https://www.collinsdictionary.com/us/dictionary/english/systematology |access-date=September 28, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref>|| The study of nature regarding the formation of systems.
||
|-
| [[Systems science|systemology]] || The study of systems and the logic of systems.
||
|}

==T==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[Tangutology]] || The study of the culture, history, art, and language of the ancient [[Tangut people]].
||
|-
| tartarology<ref>“[[doi:10.1093/OED/5897902207|Tartarology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of the underworld or doctrine pertaining to [[Hell]].
||
|-
| [[tautology (disambiguation)|tautology]] || 
#(rhetoric) A self-reinforcing pretense of significant truth.
#(grammar) The use of redundant words.
#(logic) A universal truth in formal logic.
#(rule of inference) A rule of replacement for logical expressions.
||
|-
| [[taxology]] || The technique or study of identifying, naming, and classifying things; taxonomy.
||
|-
|[[technology]]
|
#Machinery and equipment developed from the application of scientific knowledge.
#The collection of techniques, [[skill]]s, methods, and processes used in the production of [[Good (economics)|goods]] or [[Service (economics)|service]]s or in the accomplishment of objectives, such as scientific investigation.
#The branch of knowledge and study of industrial and practical uses and industrial of engineering and applied science discoveries<ref>{{Cite web |title=Technology |url=https://dictionary.cambridge.org/us/dictionary/english/technology |access-date=June 11, 2025 |website=Cambridge Dictionary}}</ref><ref>{{Citation |last=Lancaster |first=Lynne |chapter=technology |date=2016-03-07 |title=Oxford Classical Dictionary |chapter-url=https://oxfordre.com/classics/display/10.1093/acrefore/9780199381135.001.0001/acrefore-9780199381135-e-6251 |access-date=2025-06-11 |language=en |doi=10.1093/acrefore/9780199381135.013.6251 |isbn=978-0-19-938113-5|chapter-url-access=subscription }}</ref>
|
*technicology
|-
|| [[tectology]] || A [[Alexander Bogdanov|Bogdanovian]] discipline that unified all social, biological, and physical sciences by considering them as systems of relationships.
||
*tektology
|-
| [[teleology]] || A thing's orientation toward a goal; its end-directedness.
||
|-
| teleseismology<ref>“[[doi:10.1093/OED/2469955443|Teleseismology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, September 2024.</ref>|| The study of [[teleseisms]] or very distant seismic events.
||
|-
| [[telmatology]] || The branch of [[physical geography]] concerned with the study of [[wetlands]], such as [[marshes]] or [[swamps]].
||
|-
| tenontology<ref>Venes, Donald, editor. "[https://www.tabers.com/tabersonline/view/Tabers-Dictionary/765319/all/tenontology Tenontology]." [[Taber's Medical Dictionary|''Taber's Medical Dictionary'', 24th edition]]. F.A. Davis Company, 2021. via ''Taber's Online'', accessed September 28, 2024.</ref>|| The study of [[tendons]].
||
|-
| [[tephrochronology]] || A [[Geochronology|geochronological]] technique that uses discrete layers of [[tephra]]&mdash;volcanic ash from a single eruption&mdash;to create a chronological framework in which [[Paleoenviroment|paleoenvironmental]] or [[Archaeology|archeological]] records can be placed.
||
|-
| [[teratology]] || The study of abnormalities of physiological development.
||
*dysmorphology
|-
| [[terminology]] ||
#The study of terms and their use.
#A set of terms used for a specific application or study.
||
|-
|[[terotechnology]]
|The study of the costs associated with installing, [[Project commissioning|commissioning]], maintaining, replacing, and removing [[Process manufacturing|plant machinery]] and equipment<ref>{{Cite web |title=Terotechnology: What It is, How It Works, Example |url=https://www.investopedia.com/terms/t/terotechnology.asp |access-date=2025-06-11 |website=Investopedia |language=en}}</ref>
|
|-
| testaceology<ref>{{Cite web |title=Testaceology |url=https://webstersdictionary1828.com/Dictionary/testaceology |access-date=2024-09-28 |website=Websters Dictionary 1828 |language=en-US}}</ref>|| The study of testaceous mollusks.
||
*conchology
|-
| [[testudinology]] || The study of turtles or tortoises (order [[Turtle|Chelonia]]).
||
*chelonology
*cheloniology
|-
| [[teuthology]] || A branch of [[malacology]] dealing with the study of [[cephalopods]].
||
|-
| [[textology (disambiguation)|textology]] || 
#The study of the production of texts.
#A branch of [[linguistics]] that deals with [[Textuality|text]]s as [[communication system]]s.
||
|-
| [[thanatology]] || The scientific study of [[death]].
||
|-
| [[thaumatology]] || The study of miracles.
||
|-
| [[theology]] || The study of [[God]] and religious ideas.
||
|-
| thereology<ref>“[[doi:10.1093/OED/9168778955|Thereology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The science of healing and treatment of diseases; therapeutics.
||
|-
| [[theriogenology]] || A branch of veterinary medicine concerned with reproduction.
||
|-
| [[theriology]] || The study of [[mammals]].
||
*mammalogy
*mastology
*therology
|-
| [[thermology]] || 
#The study of [[heat]].
#(medicine) A science that uses [[infrared]] images of the body to diagnose problems.
||
|-
| [[therology]] ||  The study of [[mammals]].
||
*theriology
*mastology
*mammalogy
|-
| [[Thracology]] || The scientific study of [[Ancient Thrace]] and [[Thracian]] antiquities.
||
|-
| thremmatology<ref>“[[doi:10.1093/OED/5077006516|Thremmatology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The field of breeding or propagating plants and animals.
||
|-
| threpsology<ref>“[[doi:10.1093/OED/3788136145|Threpsology, N]].” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| The study of [[nutrition]]
||
*alimentology
*sitiology
*sitology
|-
| [[thymology]] || The study of those human aspects that precede or cause purposeful human behavior.
||
|-
| [[Tibetology]] || The study of things related to [[Tibet]], including its [[history of Tibet|history]], [[Tibetan Buddhism|religion]], [[Standard Tibetan|language]], politics and the collection of Tibetan articles of historical, cultural and religious significance.
||
|-
| tidology<ref>“[[doi:10.1093/OED/6893769299|Tidology, N.]]” ''[[Oxford English Dictionary]].'' Oxford University Press, July 2023.</ref>|| The science or study of [[tides]].
||
|-
| timbrology<ref>{{Cite web |title=Definition of 'timbrology' |url=https://www.collinsdictionary.com/us/dictionary/english/timbrology |access-date=September 28, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref>|| The study of postage stamps; philately.
||
|-
| timology<ref>"[https://www.thefreedictionary.com/timology timology]." ''-Ologies & -Isms''. The Gale Group, Inc., 2008. via The Free Dictionary by Farlex. Accessed 28 September 2024.</ref>|| The study of values or excellence.
||
|-
| [[tocology]] || The study of childbirth and [[obstetrics]].
||
*tokology
|-
| [[tokology]] || The study of childbirth and obstetrics.
||
*tocology
|-
| [[tonology]] || The study of [[Tone (linguistics)|tone]] in human languages.
||
|-
| [[topology]] || 
#(mathematics) The properties of space that are preserved under [[Continuous function|continuous]] deformations, such as stretching and bending, but not tearing or gluing. This can be studied by considering a collection of subsets, called [[open set]]s, that satisfy certain properties, turning the given set into what is known as a [[topological space]].
#([[membrane topology]]) The specific orientation of [[transmembrane proteins]].
#(electronics) The configuration of electronic components.
#(Network topology) Configurations of computer or biological networks.
#(Geospatial topology) The study or science of places with applications in [[earth science]], [[geography]], [[human geography]], and [[geomorphology]].
#(cartography) Used to describe a map (a [[topological map]]) that is greatly simplified but preserves the mathematical topology while sacrificing scale and shape.
#(phylogenetics) The branching pattern of a [[phylogenetic tree]].
||
|-
| [[toxicology]] || A branch of biology, chemistry, and medicine concerned with the study of the adverse effects of chemicals (poisons) on living organisms.
||
|-
| toxology<ref>{{Cite web |title=Toxicology |url=https://www.niehs.nih.gov/health/topics/science/toxicology |access-date=2024-09-28 |website=National Institute of Environmental Health Sciences |language=en}}</ref>|| 
#The study of projectiles and trajectories.
#[[Archery]], or the study of archery.
||
|-
| trachelology<ref>Venes, Donald, editor. "[https://www.tabers.com/tabersonline/view/Tabers-Dictionary/754593/all/trachelology Trachelology]." [[Taber's Medical Dictionary|''Taber's Medical Dictionary'', 24th edition]]. F.A. Davis Company, 2021. ''via'' Taber's Online, accessed September 28, 2024.</ref>|| The study of the [[neck]] and related injuries and disease.
||
|-
| [[transitology]] || The study of the process of change from one political [[regime]] to another.
||
|-
| [[traumatology]] || 
#(medicine) The study of wounds and injuries (traumas) caused by accidents or violence to a person, and the surgical therapy and repair of the damage.
#(psychology) The study, development, and application of psychological and counseling services for people who have experienced extreme or traumatic events.
||
|-
| [[tribology]] || The study of science and engineering of interacting surfaces in relative motion.
||
|-
| [[trichology]] || The branch of [[dermatology]] that deals with the scientific study of the health of hair and scalp.
||
|-
| [[trolleyology]] || An area of philosophy dealing with the kind of moral dilemma typified by the [[trolley problem]].
||
|-
| [[trophology]] || The study of [[food combining]].
||
|-
|[[tropology]]
|
#The use of figurative language in speech or writing.
#A study, treatise, or interpretation of figurative meanings in the [[Bible]].
|
|-
| tsiology<ref name=":8" />|| The study of or a treatise on [[tea]].
||
|-
| [[Turkology]] || The study of the languages, history, literature, folklore, culture, and [[ethnology]] of people speaking [[Turkic languages]] and [[Turkic peoples]].
||
|-
| typhlology<ref name=":7" />|| The study of [[blindness]].
||
|-
| [[typology (disambiguation)|typology]] ||
The study of types.
#([[Farm typology|farm]]) The classification of farms by the [[USDA]].
#([[Milewski's typology]]) A language classification system.
#([[Morphological typology|morphological]]) A way of classifying the languages of the world that groups languages according to their common morphological structures.
#([[Oakeshott typology]]) A classification system of medieval swords.
#([[Pavlov's typology]]) The first systematic approach to the psychophysiology of individual differences.
#([[Psychological typologies]]) Classifications used by psychologists to describe the distinctions between people.
#([[Sasang typology]]) A classification scheme in [[Traditional Korean medicine]].
#([[Sociopolitical typology]]) The four types, or levels, of a political organization.
#([[Typology (anthropology)|anthropology]]) The division of culture by races.
#(archaeology) The classification of artifacts according to their characteristics.
#([[Typology (linguistics)|linguistics]]) The study and classification of languages according to their structural features.
#([[Typology (psychology)|psychology]]) A model of personality types.
#([[Typology (statistics)|statistics]]) A concept in statistics, research design, and social sciences.
#([[Typology (theology)|theology]]) In Christian theology, the interpretation of some figures and events in the [[Old Testament]] as foreshadowing the [[New Testament]].
#([[Typology (urban planning and architecture)|urban planning and architecture]]) The classification of characteristics common to buildings or urban spaces.
#([[Johnson's typology]]) A classification of [[intimate partner violence]] (IPV).
||
|-
| typtology<ref name=":6" />|| The study of spirit rapping, or the theory that spirits communicate with the living by tapping various codes.
||
|}

==U==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[ufology]] || The study of reports, visual records, physical evidence, and other phenomena related to [[unidentified flying objects]] (UFO).
||
|-
| [[universology]] || The study and science of the universe.
||
|-
| [[uranology]] || The study of [[heaven]]s.
||
|-
| [[urbanology]] || The branch of [[sociology]] that studies the problems of living in cities and towns.
||
|-
| uredinology<ref>“[[mwod:uredinology|Uredinology]].” ''Dictionary''. [[Merriam-Webster]]. via Merriam-Webster.com. Accessed September 24, 2024.</ref>|| The study of [[Rust (fungus)|rust molds]].
||
*mycology
|-
| urinology<ref>Venes, Donald, editor. "[https://www.tabers.com/tabersonline/view/Tabers-Dictionary/771273/all/urinology Urinology]." ''[[Taber's Medical Dictionary]]'', 24th ed., F.A. Davis Company, 2021. via ''Taber's Online'', accessed September 24, 2024.</ref>|| The study of [[urine]] and the [[urinary system]].
||
|-
| [[urogynecology]] || A surgical sub-specialty of [[urology]] and [[gynecology]].
||
|-
| urolithology<ref>"[https://medical-dictionary.thefreedictionary.com/urolithology urolithology]." ''Farlex Partner Medical Dictionary''.  Farlex, 2012.  via The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The study of the [[Urolithiasis|formation, composition, effects, and removal of urinary calculi]].
||
|-
| [[urology]] || The branch of medicine that focuses on surgical and medical diseases of the male and female [[urinary tract]] system and the [[male reproductive organs]].
||
|-
| uronology<ref>"[https://www.thefreedictionary.com/Uronology Uronology]." ''Webster's Revised Unabridged Dictionary''. G. & C. Merriam Co., 1913. via The Free Dictionary by Farlex. Accessed September 24, 2024.</ref>|| The branch of medicine dealing with [[urine]].
||
|}

==V==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[vaccinology]] || The study, development, and production of [[vaccines]].
||
|-
| valeology<ref>Soldatova, T. (1999). [[doi:10.2753/RES1060-9393410287|Valeology Comes to the Classroom]]. ''Russian Education & Society'', ''41''(2), 87–98. via Taylor & Francis Online.</ref>|| The study of healthy living
||
|-
| [[Vaticanology]] || The study of the politics, decisions, and functioning of the [[Vatican City|Vatican]], [[Holy See]], and [[Roman Catholic Church]].
||
|-
| [[velology]] || The study and collection of [[Vehicle licence|vehicle tax discs]].
||
|-
| [[venereology]] || The branch of medicine dealing with the study and treatment of [[sexually transmitted diseases]].
||
|-
| venology<ref>{{Cite web |title=Definition of 'venology' |url=https://www.collinsdictionary.com/us/dictionary/english/venology |access-date=September 12, 2024 |website=Collins |publisher=[[Collins English Dictionary]]}}</ref>|| The study of [[veins]].
||
*phlebology
|-
| [[vermeology]]|| The study of [[worm]]s.
||
*helminthology
|-
| [[vexillology]] || The study of the history, usage, and symbolism of [[flags]].
||
|-
| [[victimology]] || The study of the victims of crime, and especially of the reasons why some people are more prone to be victims.
||
|-
| [[Vietnamology]] || The study of [[Vietnam]].
||
|-
| [[virology]] || The study of [[viruses]].
||
|-
| vitaminology<ref>{{Cite journal |date=1950-09-09 |title=Vitaminology: The Chemistry and Function of the Vitamins |url=http://jama.jamanetwork.com/article.aspx?doi=10.1001/jama.1950.02920020130036 |journal=Journal of the American Medical Association |language=en |volume=144 |issue=2 |pages=210 |doi=10.1001/jama.1950.02920020130036 |issn=0002-9955|url-access=subscription }}</ref>|| The study of [[vitamins]].
||
|-
| [[vocology]] || The science and practice of vocal habilitation, or vocal training and therapy.
||
|-
| [[volcanology]] || The study of [[volcano]]es, [[lava]], [[magma]], and related [[geology|geological]], [[geophysical]] and [[geochemistry|geochemical]] phenomena.
||
*vulcanology
|-
| vulvology<ref>Micheletti, Leonardo et al. “[https://pubmed.ncbi.nlm.nih.gov/12380451/ Vulvology. A proposal for a multidisciplinary subspecialty].” ''The Journal of Reproductive Medicine'' vol. 47,9 (2002): 715–7. via National Library of Medicine</ref>|| The study of the [[vulva]].
||
|}

==W==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[webology]] || The study of [[World Wide Web]].
||
|}

==X== 
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
|xenoanthropology<ref>{{Cite web |title=Xenoanthropology {{!}} Honors College |url=https://honorscollege.rutgers.edu/xenoanthropology |access-date=2024-09-12 |website=Rutgers University}}</ref>
|The branch of [[xenology]] dealing with extraterrestrial cultures
|
* xenoarcheology
|-
| [[xenoarcheology]]{{efn|name=fn3}} || A fictional science, concerned with the physical remains of alien cultures.
||
*{{dfn|1=exoarcheology|2=Disputed synonymity|title=exoarcheology;}}{{efn|name=fn3}}
|-
| [[xenobiology]] || A subfield of synthetic biology dealing with the study of synthesizing and manipulating biological devices and systems.
||
|-
|xenodochionology<ref>“[[mwod:xenodocheionology|Xenodocheionology]].”  ''Dictionary''. [[Merriam-Webster]]. ''via'' Merriam-Webster.com. Accessed September 24, 2024.</ref>
|The study of [[hotels]] or [[inns]].
|
|-
| [[xenology]] || 
#(science fiction) The study of alien life.
#(genetics) [[Homology (biology)|Homology]] from horizontal gene transfer.
||
|-
| [[xylology]] || The study of [[wood]].
||
|}

==Z==
{{sticky-header}}
{| class="wikitable sticky-header sortable" style="width:100%;"
|-
! ''-ology Word''
! Description
! Synonyms
----Alternative&nbsp;spellings
|-
| [[zooarcheology]]{{efn|name=fn3}} || The study of animal remains at [[archeological sites]].
||
*archeozoology{{efn|name=fn3}}
|-
| zoogeology<ref>“[[doi:10.1093/OED/4108639182|Zoogeology, N.]]” ''[[Oxford English Dictionary]].'' Oxford University Press, September 2024.</ref>|| The study of fossil animal remains.
||
|-
| [[zoology]] || The scientific study of the behavior, structure, [[physiology]], classification, and distribution of animals.
||
*zoölogy
|-
| zoonosology<ref>“[[doi:10.1093/OED/7205815844|Zoonosology, N.]]” ''[[Oxford English Dictionary]].'' Oxford University Press, September 2024.</ref>|| The study of animal diseases.
||
|-
| [[zoopathology]] || The veterinary study specializing in the diagnosis of animal diseases through the examination of animal tissue and body fluids.
||
*veterinary pathology
|-
| zoophysiology<ref>{{Cite web |date=2024-07-05 |title=Zoophysiology |url=https://www.gu.se/en/biological-environmental-sciences/our-research/zoophysiology |access-date=2024-09-12 |website=University of Gothenburg |language=en}}</ref>|| The study of the physiology of animals.
||
|-
| zoophytology<ref>{{Cite web |title=Definition of 'zoophytology' |url=https://www.collinsdictionary.com/us/dictionary/english/zoophytology |access-date=September 12, 2024 |website=Collins Dictionary |publisher=[[Collins English Dictionary]]}}</ref>|| The natural history of [[zoophytes]].
||
*zoöphytology
|-
| zoopsychology<ref>“[[doi:10.1093/OED/1841339878|Zoopsychology, N.]]” ''[[Oxford English Dictionary]].'' Oxford University Press, September 2024.</ref>|| The study of psychology in animals.
||
|-
| zygology<ref>“[[doi:10.1093/OED/4824823182|Zygology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, July 2023.</ref>|| A branch of technology dealing with joining and fastening.
||
|-
| [[zymology]] || The science of or knowledge concerning [[fermentation]].
||
*zumology
|-
| zymotechnology<ref>“[[doi:10.1093/OED/1110133270|Zymotechnology, N.]]” ''[[Oxford English Dictionary]]''. Oxford University Press, June 2024.</ref>|| The study of fermentation, especially yeast fermentation in beer-brewing.
||
|-
| [[zythology]] || The study of [[beer]] and beer-brewing.
||
|}

==See also==
* [[Index of branches of science]]
* [[-logy]]
* [[wiktionary:-ology|-ology]]

== Notes ==
{{notelist|refs=
{{efn|name=fn1|The prefix '''paleo''' is used to denote something prehistoric, old, ancient, or primitive. The alternate spellings for it include: '''palaeo''' and '''palæo'''. All words which begin with the prefix '''paleo-''' can be alternatively spelt with '''palaeo-''' or '''palæo-'''.}}
{{efn|name=fn2|Words that contain the American prefix or combining form '''hema-''' (or sometimes '''hemo''') can be alternatively spelt with '''haema-''' or '''hæma''', the British English version. In both cases, it means [[blood]].}}
{{efn|name=fn3|The prefix or [[combining form]] '''archeo''' means ''ancient''. It can be alternately spelled '''archaeo''' or '''archæo'''. All words which contain '''archeo''' can be alternatively spelt with '''archaeo''' or '''archæo'''.}}
}}

==References==
{{reflist|30em}}

==External links==
{{wiktionary category|English terms suffixed with -ology}}
{{wiktionary|-ology|-logy}}
{{Wikiversity|Ologies}}

{{DEFAULTSORT:Words with the suffix -ology}}
[[Category:Lists of English words]]