/ Dictionary / Index G geologist: Meaning and Definition of Find definitions for: ge•ol•o•gist Pronunciation: ( jē-ol'u-jist), [key] — n. a person who specializes in geologic research and study. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: geologist (Thesaurus) geologic time geologize Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language