Lexic.us

Definition of Quinine

1. Noun. A bitter alkaloid extracted from chinchona bark; used in malaria therapy.

Definition of Quinine

1. 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.

Definition of Quinine

1. Noun. (pharmaceutical drug) A bitter colourless powder, an alkaloid derived from cinchona bark, used to treat malaria and as an ingredient of tonic water. ¹

¹ Source: wiktionary.com

Definition of Quinine

1. a medicinal alkaloid [n -S]

Medical Definition of Quinine

1. An alkaloid isolated from cinchona bark. Used as an antimalarial. It is believed to act by raising the pH of endocytotic vesicles and inhibiting internal membrane fusion processes. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Quinine

Literary usage of Quinine

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Analyst (1879)
"WHEN small amounts of strychnine must be estimated in presence of much quinine, it is advisable, according to the author, to remove first the bulk of the ..."

2. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, and General by Thomas Spencer Baynes (1888)
"quinine ia precipitated from its solution by alkalies and their carbonates. ... The acid solution of sulphate of quinine is fluorescent, especially -when ..."

3. Pharmaceutical Journal by Royal Pharmaceutical Society of Great Britain (1867)
"We chose quinine because of that splendid test which led Professor Stokes to the ... Here, for example, are different solutions of quinine of different ..."

4. American Druggist (1888)
"quinine Mixtures. As regards the solution of quinine in acids, the fact that ... The only admissible manner of compounding is to reduce the quinine to fine ..."

5. Allen's Commercial Organic Analysis: A Treatise on the Properties, Modes of by Alfred Henry Allen (1917)
"The process may be used for the estimation of quinine in the presence of caffeine, but not for the separation of quinine from other cinchona alkaloids. ..."

6. A Dictionary of Chemistry and the Allied Branches of Other Sciences by Henry Watts (1869)
"quinine neutralises acids completely, forming mono-acid or ... Solutions of quinine-salts containing excess of acid are highly fluorescent ethyl- quinine (p ..."

7. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1849)
"quinine as prophylactic of Puerperal Fever.—The idea that quinine is ... For ihis purpose he employed the quinine in 15 grain (one gramme) doses, ..."

8. Diet in Health and Disease by Julius Friedenwald, John Ruhräh (1907)
"quinine. Although numerous experiments have shown that quinine exercises: ... The cause lies in the varying individual reactions to quinine both in healthy ..."

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