- a colorless, liquid compound, CHN, obtained by the destructive distillation of bones, coal tar, and various alkaloids, or by synthesis: it is used in making antiseptics, dyes, etc. and as a solvent
- any of various derivatives of quinoline
Origin of quinolinequin(ine) + -ol + -ine
An aromatic organic base, C9H7N, having a pungent tarlike odor, synthesized or obtained from coal tar, and used as a food preservative and in making antiseptics, drugs, and dyes.