/ Dictionary / Index S sex cell: Meaning and Definition of Find definitions for: sex' cell" Pronunciation: [key] a spermatozoon or an ovum; gamete. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sexavalent sexcentenary Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language