/ Dictionary / Index G gametophyte: Meaning and Definition of Find definitions for: ga•me•to•phyte Pronunciation: (gu-mē'tu-fīt", gam'i-), [key] — n. Bot. the sexual form of a plant in the alternation of generations. Cf. sporophyte. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: gametophyte (Thesaurus) gametophore gametothallus 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