/ Dictionary / Index G gametocide: Meaning and Definition of Find definitions for: ga•me•to•cide Pronunciation: (gu-mē'tu-sīd", gam'i-), [key] — n. a substance that kills gametes or gametocytes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gameto- gametocyte Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language