- a white, bitter, slightly water-soluble alkaloid, C20H24N2O2, having needlelike crystals, obtained from cinchona bark: used in medicine chiefly in the treatment of resistant forms of malaria.
- a salt of this alkaloid, especially the sulfate.
Origin of quinine
Examples from the Web for quinine
Well, shove in quinine, and keep him quiet, with hot bottles to his feet.The Burning Spear
Which would be better to give him, quinine, or aconite and belladonna?The Very Small Person
Annie Hamilton Donnell
But I fully believed that quinine was of very great use indeed.
The lower of the two, in one of its compartments, contained our provision of quinine.
Sulphate of quinine is made by the use of sulphuric acid as a solvent.Practical Mechanics for Boys
J. S. Zerbe
- a bitter crystalline alkaloid extracted from cinchona bark, the salts of which are used as a tonic, antipyretic, analgesic, etc, and in malaria therapy. Formula: C 20 H 24 N 2 O 2
Word Origin and History for quinine
alkaloid responsible for curative properties in the cinchona tree, 1821, from French quinine (1820), with chemical ending -ine (2) + Spanish quina "cinchona bark" (from which it is extracted), from Quechua (Peru) kina. Earlier in reduplicated form quinaquina (1727).
- A bitter colorless amorphous powder or crystalline alkaloid derived from certain cinchona barks and used to treat malaria.
- Any of various compounds or salts of quinine.
- A bitter-tasting, colorless drug derived from the bark of certain cinchona trees and used medicinally to treat malaria. For hundreds of years quinine was the only drug known to effectively combat malarial infection. It has since been largely replaced by synthetic compounds that not only relieve the symptoms of malaria but also rid the body of the malarial parasite, which quinine does not do. See Note at aspirin.