-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.
The climates of small areas of the earth's surface which may differ from the general climate of the district.
2. In psychoanalysis, or psychoanalytic metapsychology, psychology concerning the fundamental assumptions of the freudian theory of the mind, that entail five points of view:
b. Economic, concerning psychologic energy.
c. Structural, concerning psychologic configurations.
d. Genetic, concerning psychologic origins.
e. Adaptive, concerning psychologic relations with the environment.
4. A term applied to theories about the origin, structure, and functions of the mind that extend beyond the empirical laws of psychology.
2. Knowledge of the conditions of weather, atmospheric changes, etc., of a particular region: Meteorology is the scientific study of the physical and chemical phenomena of the atmosphere; especially, as they relate to weather and climate conditions.
Meteorology is now commonly used to include all of the scientific studies of the role of the atmosphere in the global climate systems.


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2. The study of or research about fogs and smogs; especially, those affecting air pollution levels.