quinidine

[ kwin-i-deen, -din ]

/ ˈkwɪn ɪˌdin, -dɪn /

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noun Pharmacology.

a colorless, crystalline alkaloid, C20H24N2O2, isomeric with quinine, obtained from the bark of certain species of cinchona trees or shrubs, used chiefly to regulate heart rhythm and to treat malaria.

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Origin of quinidine

First recorded in 1830–40; quin(ine) + -id³ + -ine²

Words nearby quinidine

quinestrol, Qui Nhon, Qui Nhong, quinhydrone, quinic acid, quinidine, quiniela, quinine, quinine water, Quinn, quinnat salmon

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use quinidine in a sentence

It is nothing more than quinidine, or cinchonidine, or a mixture of both.
Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I|Arnold Cooley
Quinidine yields with chromic acid the same decomposition products as quinine.
Scientific American Supplement, No. 415, December 15, 1883|Various
This reaction is not characteristic of quinine, for with quinidine one gets the same reaction.
Cooley's Practical Receipts, Volume II|Arnold Cooley
Dr de Vrij, for instance, found sometimes more than 20% of quinidine in some samples of quinoidine of commerce.
Cooley's Practical Receipts, Volume II|Arnold Cooley

From the above statement respecting the solubility of quinidine in ether, it appears that the 10 gr.
Cooley's Practical Receipts, Volume II|Arnold Cooley

British Dictionary definitions for quinidine

quinidine

/ (ˈkwɪnɪˌdiːn) /

noun

a crystalline alkaloid drug that is an optically active diastereoisomer of quinine: used to treat heart arrhythmias. Formula: C 20 H 24 N 2 O 2

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