/ Dictionary / Index T trisaccharide: Meaning and Definition of Find definitions for: tri•sac•cha•ride Pronunciation: (trī-sak'u-rīd", -ur-id), [key] — n. Chem. a carbohydrate composed of three monosaccharide units, and hydrolyzable to a monosaccharide or a mixture of monosaccharides. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: trisaccharide (Thesaurus) trireme trisect Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language