/ Dictionary / Index G genus: Meaning and Definition of Find definitions for: ge•nus Pronunciation: ( jē'nus), [key] — pl. gen•e•ra ge•nus•es. the usual major subdivision of a family or subfamily in the classification of organisms, usually consisting of more than one species. a class or group of individuals, or of species of individuals. a kind; sort; class. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: genus (Thesaurus) genuine genu valgum Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language