/ Dictionary / Index G gymnosperm: Meaning and Definition of Find definitions for: gym•no•sperm Pronunciation: ( jim'nu-spûrm"), [key] — n. Bot. a vascular plant having seeds that are not enclosed in an ovary; a conifer or cycad. Cf. angiosperm. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: gymnosperm (Thesaurus) gymnosophist gymnospermous 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