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cinchonine

American  
[sing-kuh-neen, -nin, sin-] / ˈsɪŋ kəˌnin, -nɪn, ˈsɪn- /

noun

Pharmacology.
  1. a colorless, crystalline, slightly water-soluble alkaloid, C 19 H 22 N 2 O, a stereoisomer of cinchonidine, obtained from the bark of various species of cinchona and used chiefly as a quinine substitute.


cinchonine British  
/ ˈsɪŋkəˌniːn /

noun

  1. an insoluble crystalline alkaloid isolated from cinchona bark, used to treat malaria. Formula: C 19 H 22 N 2 O

"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

Etymology

Origin of cinchonine

First recorded in 1815–25; cinchon(a) + -ine 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Cinchonine has the formula C19H22N2O, quinine being methoxy cinchonine, i.e.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" by Various

Their great value depends upon the presence of certain alkaloid substances called quinine, cinchonine, and quinidine, which exist in the bark in combination with tannic and other acids.

From Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture by William Saunders

When cinchonine is treated with potassium hydrate, it is decomposed into quinoline and a solid body, which on further treatment yields a liquid base, C7H9N, which is probably lutidine.

From Scientific American Supplement, No. 415, December 15, 1883 by Various

It is stated that incomplete examinations have detected cinchonine in the bark.

From Catalogue of Economic Plants in the Collection of the U. S. Department of Agriculture by William Saunders

The true cinchona barks, containing quinine, quinidine, and cinchonine, are distinguished from the false by their splintery-fibrous texture, the latter being pre-eminently corky.

From The Andes and the Amazon Across the Continent of South America by James Orton

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