/ Dictionary / Index Q quinoline: Meaning and Definition of Find definitions for: quin•o•line Pronunciation: (kwin'l-ēn", -in), [key] — n. Chem. a colorless, liquid, water-immiscible, nitrogenous base, CHN, having a disagreeable odor, occurring in coal tar, and usually prepared by oxidizing a mixture of glycerol and aniline: used as a solvent and reagent and to make dyes. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quinol quinone Related Content Daily Word Quiz: abstain Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language