from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A colorless crystalline alkaloid, C20H24N2O2, resembling quinine and used in treating malaria and certain heart disorders.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An isomer of quinine that is used as an antiarrhythmic agent

from 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.

from The Century Dictionary and Cyclopedia

  • n. A base (C20H24N2O2) isomeric with quinine, and occurring associated with it in some cinchona barks.

from 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


Sorry, no etymologies found.



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  • Usage note in comment on quinine.

    October 4, 2017