/ Dictionary / Index G gynoecium: Meaning and Definition of Find definitions for: gy•noe•ci•um Pronunciation: ( ji-nē'sē-um, -shē-, gī-, jī-), [key] — pl. -ci•a the pistil or pistils of a flower; the female parts. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: gynoecium (Thesaurus) gynodioecious gynogenesis Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language