/ Dictionary / Index G geneticist: Meaning and Definition of Find definitions for: ge•net•i•cist Pronunciation: ( ju-net'u-sist), [key] — n. a specialist or expert in genetics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: geneticist (Thesaurus) genetic fingerprinting genetic load Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language