quinoline
noun
quin·o·line ˈkwi-nə-ˌlēn 
1
: a pungent oily nitrogenous base C9H7N obtained usually by distillation of coal tar or by synthesis from aniline that is the parent compound of many alkaloids, drugs, and dyes
2
: a derivative of quinoline
Example Sentences
Recent Examples on the Web Other compounds in the same class, known as quinolines, could prove to be superior treatments or serve as backups for patients who can’t tolerate hydroxychloroquine, Frantz said. 
Alia Malik, ExpressNews.com, 8 Apr. 2020
Alia Malik, ExpressNews.com, 8 Apr. 2020 Word History
Etymology
International Scientific Vocabulary quinine + -ol entry 3 + -ine entry 2
First Known Use
1845, in the meaning defined at sense 1
Medical Definition
quinoline
noun
quin·o·line ˈkwin-ᵊl-ˌēn
1
: a pungent oily nitrogenous base C9H7N that is obtained usually by distillation of coal tar or by synthesis from aniline and is the parent compound of many alkaloids, drugs, and dyes
2
: a derivative of quinoline