'Quinidine' definitions:

Definition of 'quinidine'

From: WordNet
noun
Cardiac drug (trade names Quinidex and Quinora) used to treat certain heart arrhythmias [syn: quinidine, Quinidex, Quinora]

Definition of 'Quinidine'

From: GCIDE
  • Quinidine \Quin"i*dine\, n. (Chem.) An alkaloid isomeric with, and resembling, quinine, found in certain species of cinchona, from which it is extracted as a bitter white crystalline substance; conchinine. It is used somewhat as a febrifuge. [Written also chinidine.] [1913 Webster]