Dictionary.com
definitions
  • synonyms

quinine

[kwahy-nahyn, kwin-ahyn or, esp. British, kwi-neen]
See more synonyms for quinine on Thesaurus.com
noun Chemistry, Pharmacology.
  1. 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.
  2. a salt of this alkaloid, especially the sulfate.
Show More

Origin of quinine

1820–30; < Spanish quin(a) (< Quechua kina bark) + -ine2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

put-downvilificationobloquytiradecursescoldingdefamationrevilementderisioninvectivelibelcensureblameopprobriumreproachcastigationslandervituperationcurses

Examples from the Web for quinine

Historical Examples

  • Well, shove in quinine, and keep him quiet, with hot bottles to his feet.

    The Burning Spear

    John Galsworthy

  • 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 Shadow-Line

    Joseph Conrad

  • The lower of the two, in one of its compartments, contained our provision of quinine.

    The Shadow-Line

    Joseph Conrad

  • Sulphate of quinine is made by the use of sulphuric acid as a solvent.


British Dictionary definitions for quinine

quinine

noun
  1. 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
Show More

Word Origin

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

Word Origin and History for quinine

n.

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).

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

quinine in Medicine

quinine

(kwīnīn′)
n.
  1. A bitter colorless amorphous powder or crystalline alkaloid derived from certain cinchona barks and used to treat malaria.
  2. Any of various compounds or salts of quinine.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

quinine in Science

quinine

[kwīnīn′]
  1. 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.
Show More
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.