/ Dictionary / Index T thiophenol: Meaning and Definition of Find definitions for: thi•o•phe•nol Pronunciation: (thī"u-fē'nôl, -nol), [key] — n. Chem. a colorless, foul-smelling liquid, CHS, used chiefly in organic synthesis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thiophene thiophosphate 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