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单词 quinine
释义

quinine

[ kwahy-nahyn, kwin-ahyn or, especially British, kwi-neen ]
/ ˈkwaɪ naɪn, ˈkwɪn aɪn or, especially British, kwɪˈnin /
SEE SYNONYMS FOR quinine ON THESAURUS.COM

noun Chemistry, Pharmacology.

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

1820–30; <Spanish quin(a) (<Quechua kina bark) + -ine2

Words nearby quinine

Qui Nhong, quinhydrone, quinic acid, quinidine, quiniela, quinine, quinine water, Quinn, quinnat salmon, quino-, quinoa
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for quinine

British Dictionary definitions for quinine

quinine
/ (kwɪˈniːn, US ˈkwaɪnaɪn) /

noun

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 for quinine

C19: from Spanish quina cinchona bark, from Quechua kina bark
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for quinine

quinine
[ kwīnīn′ ]

n.

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.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for quinine

quinine
[ kwīnīn′ ]

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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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