n. An isomer of quinine that is used as an antiarrhythmic agent
the GNU version of the Collaborative International Dictionary of English
n. 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.
The Century Dictionary and Cyclopedia
n. A base (C20H24N2O2) isomeric with quinine, and occurring associated with it in some cinchona barks.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. cardiac drug (trade names Quinidex and Quinora) used to treat certain heart arrhythmias
Word Usage
"What we have done is recognized that you can inhibit ones ability to metabolize dextromethorphan by adding quinidine, which is a therapeutic."