/ Dictionary / Index T trehalose: Meaning and Definition of Find definitions for: tre•ha•lose Pronunciation: (trē'hu-lōs", tri-hä'lōs), [key] — n. Chem. a white, crystalline disaccharide, CHO, occurring in yeast, certain fungi, etc., and used to identify certain bacteria. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. trehala treillage Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language