/ Dictionary / Index T trinodal: Meaning and Definition of Find definitions for: tri•nod•al Pronunciation: (trī-nōd'l), [key] — adj. Bot. having three nodes or joints. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. trinocular trinomial 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