/ Dictionary / Index T toluic acid: Meaning and Definition of Find definitions for: tolu'ic ac'id Pronunciation: [key] — Chem. Chem. any of four isomeric acids having the formula CHCHCOOH: derivatives of toluene. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. toluic toluidine Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language