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[sing-kuh-neen, -nin, sin-] /ˈsɪŋ kəˌnin, -nɪn, ˈsɪn-/
noun, Pharmacology.
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.
Origin of cinchonine
First recorded in 1815-25; cinchon(a) + -ine2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for cinchonine


an insoluble crystalline alkaloid isolated from cinchona bark, used to treat malaria. Formula: C19H22N2O
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
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cinchonine in Medicine

cinchonine cin·cho·nine (sĭng'kə-nēn', sĭn'chə-)
An alkaloid derived from the bark of various cinchona trees and used as an antimalarial agent.

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