English

Definition of quinine noun from the Oxford Advanced Learner's Dictionary

 

quinine

 noun
noun
BrE BrE//kwɪˈniːn//
 
; NAmE NAmE//kwɪˈniːn//
 
; BrE BrE//ˈkwɪniːn//
 
; NAmE NAmE//ˈkwɪniːn//
 
, also NAmE//ˈkwaɪnaɪn//
 
[uncountable]
 
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a drug made from the bark of a S American tree, used in the past to treat malaria Word Origin early 19th cent.: from Spanish quina ‘cinchona bark’ (from Quechua kina ‘bark’) + -ine. Cinchona is an evergreen South American tree or shrub, whose bark is the source of quinine.
See the Oxford Advanced American Dictionary entry: quinine