/ Dictionary / Index Q quinic acid: Meaning and Definition of Find definitions for: quin'ic ac'id Pronunciation: (kwin'ik), [key] — Chem. Chem. a white, crystalline, water-soluble, solid cyclic compound, CHO, present in cinchona bark, coffee beans, and the leaves of many plants. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quinhydrone quinidine Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language