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Meaning Of Quinine
n.
An alkaloid extracted from the bark of several species of
cinchona (esp. Cinchona Calisaya) as a bitter white crystalline
substance, C20H24N2O2. Hence, by extension (Med.), any of the salts of
this alkaloid, as the acetate, chloride, sulphate, etc., employed as a
febrifuge or antiperiodic. Called also quinia, quinina, etc.