[sing-kon-i-deen, -din, sin-]

noun Pharmacology.

a white, crystalline, slightly water-soluble, levorotatory alkaloid, C19H22N2O, stereoisomeric with cinchonine and similarly derived, used chiefly as a quinine substitute.

Origin of cinchonidine

First recorded in 1850–55; cinchon(a) + -id3 + -ine2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of cinchonidine

British Dictionary definitions for cinchonidine



an alkaloid that is a stereoisomer of cinchonine, with similar properties and uses
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