(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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). quinine. Retrieved September 25, 2026, from http://smartdefine.org/quinine/definitions/2051988 |
| Chicago | Webster's. 2011. "quinine" http://smartdefine.org/quinine/definitions/2051988 (accessed September 25, 2026). |
| Harvard | Webster's 2011, quinine, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/quinine/definitions/2051988>. |
| MLA | Webster's. "quinine" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/quinine/definitions/2051988> |