/ Dictionary / Index Z zygote: Meaning and Definition of Find definitions for: zy•gote Pronunciation: (zī'gōt, zig'ōt), [key] — n. Biol. the cell produced by the union of two gametes, before it undergoes cleavage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: zygote (Thesaurus) zygospore zygotene Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language