/ Dictionary / Index T trispermous: Meaning and Definition of Find definitions for: tri•sper•mous Pronunciation: (trī-spûr'mus), [key] — adj. Bot. having three seeds. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. trispast Tristan Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language