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quinidine

[ kwin-i-deen, -din ]

noun

, Pharmacology.
  1. a colorless, crystalline alkaloid, C 2 0 H 2 4 N 2 O 2 , 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.


quinidine

/ ˈkwɪnɪˌdiːn /

noun

  1. 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


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Word History and Origins

Origin of quinidine1

First recorded in 1830–40; quin(ine) + -id 3 + -ine 2
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Compare Meanings

How does quinidine compare to similar and commonly confused words? Explore the most common comparisons:

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Example Sentences

It is nothing more than quinidine, or cinchonidine, or a mixture of both.

Quinidine yields with chromic acid the same decomposition products as quinine.

This reaction is not characteristic of quinine, for with quinidine one gets the same reaction.

Dr de Vrij, for instance, found sometimes more than 20% of quinidine in some samples of quinoidine of commerce.

From the above statement respecting the solubility of quinidine in ether, it appears that the 10 gr.

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quinic acidquiniela