/ Dictionary / Index T trihydroxy: Meaning and Definition of Find definitions for: tri•hy•drox•y Pronunciation: (trī"hī-drok'sē), [key] — adj. Chem. containing three hydroxyl groups. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: trihydroxy (Thesaurus) trihydric triiodomethane Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language