-ology, -logy, -ologist, -logist

(Greek: a suffix meaning: to talk, to speak; a branch of knowledge; any science or academic field that ends in -ology which is a variant of -logy; a person who speaks in a certain manner; someone who deals with certain topics or subjects)

The word -ology is a back-formation from the names of certain disciplines. The -logy element basically means "the study of ____". Such words are formed from Greek or Latin roots with the terminal -logy derived from the Greek suffix -λογια (-logia), speaking, from λεγειν (legein), "to speak".

The suffix -ology is considered to be misleading sometimes as when the "o" is actually part of the word stem that receives the -logy ending; such as, bio + logy.

Through the years -ology and -logy have come to mean, "study of" or "science of" and either of these suffixes often utilize the form of -ologist, "one who (whatever the preceding element refers to)".

The examples shown in this unit represent just a small fraction of the many words that exist in various dictionaries.

A specialist in the science of earthquakes and their effects.
seismology (s) (noun) (no plural)
1. The branch of geology that involves the studies of earthquakes and their effects on the areas of the earth: Joseph is a specialist of seismology who presents information regarding the locations and magnitudes of the trembles when they happen.
2. Etymology: from Greek seismo-, "a shaking" + -ology, "study of" or "science of".
The science of earthquakes.
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Anyone who studies the nature and history of the moon.
selenology, selenological
1. The branch of astronomy concerned with the origin and physical characteristics of the moon.
2. The study of the nature and history of the moon.
3. The study of the moon, including such attributes as magnitude, motion, and constitution.
The study of landforms on the moon, including their origins, evolutions, and distributions.
Someone who studies the branch of linguistics that deals with the study of meaning, changes in meaning, and the principles that govern the relationship between sentences, images, or words and their meanings.
1. The study or science of meaning in language.
2. In linguistics, the study of relationships between signs and symbols and what they represent.
1. The doctrine of signs as the expression of thoughts or reasoning.
2. The science of indicating thoughts by signs.
3. The theory of the use of signs; especially, words, in their relation to knowledge and cognition.
semeiology, semiology
The study of signs and symbols and their uses or interpretations.
A descriptive term for or a reference to signs or symbols; for example, as they are used in speech or writing.
An expert in the science of the properties and reactions of serums, especially blood serum.
serology, serological, serologic
1. A blood test to detect the presence of antibodies against a microorganism.
2. The branch of science concerned with serum, especially with specific immune or lytic serums; to measure either antigens or antibodies in sera.
3. The branch of medicine concerned with the study of blood serum and its constituents, especially its role in protecting the human body against disease.
The scientific study of saliva; its functions, therapeutic treatment, etc.
Sinologist, sinologist (s); Sinologists, sinologists (pl) (nouns)
A student of Chinese history, language, and culture.
Cross references of word families related directly, or indirectly, to: "talk, speak, speech; words, language; tongue, etc.": cit-; clam-; dic-; fa-; -farious; glosso-; glotto-; lalo-; linguo-; locu-; logo-; loqu-; mythico-; ora-; -phasia; -phemia; phon-; phras-; Quotes: Language,Part 1; Quotes: Language, Part 2; Quotes: Language, Part 3; serm-; tongue; voc-.