Definition from Wiktionary, the free dictionary
- IPA: /ˈkwaɪnaɪn/
- (pharmacology) A bitter colourless powder, an alkaloid derived from cinchona bark, used to treat malaria and as an ingredient of tonic water.
alkaloid used to treat malaria
See also 
quinine f (plural quinines)
- “quinine” in the Dictionnaire de l’Académie française, 8th Edition (1932–35).