/ Dictionary / Index T triliteral: Meaning and Definition of Find definitions for: tri•lit•er•al Pronunciation: (trī-lit'ur-ul), [key] — adj. using or consisting of three letters. (of Semitic roots) consisting of three consonants. —n. a triliteral word or root. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. trilingual triliteralism Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language