/ Dictionary / Index T trimodal: Meaning and Definition of Find definitions for: tri•mod•al Pronunciation: (trī-mōd'l), [key] — adj. Statistics. (of a distribution) having three modes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. trimming tab trimolecular Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language