quinidine

Q10U1I1N1I1D2I1N1E1
/ˈkwɪn.ɪ.diːn/

noun

A compound obtained from cinchona bark and used to treat irregularities of heart rhythm. It is an isomer of quinine.

Similar
QuinidexQuinora
UncommonScrabble 19
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Meanings

nounquinidine (countable and uncountable, plural quinidines)

plural quinidines

  1. countableuncountablechemistryA compound obtained from cinchona bark and used to treat irregularities of heart rhythm. It is an isomer of quinine.

Synonyms & antonyms

nouncardiac drug (trade names Quinidex and Quinora) used to treat certain heart arrhythmias

Similar
QuinidexQuinora
Broader
antiarrhythmicantiarrhythmic drugantiarrhythmic medication
Also see
conquinine

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From Spanish quina + -idine.

Full word history & related roots →

Translations

Catalan quinidina
  • quinidinaisomer of quinine
Chinese Mandarin 奎尼丁
  • 奎尼丁 (kuínídīng)isomer of quinine
French quinidine
  • quinidineisomer of quinine
German Chinidin
  • Chinidinisomer of quinine
Italian chinidina
  • chinidinaisomer of quinine
Spanish quinidina
  • quinidinaisomer of quinine
Cite this entry
APA

quinidine. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/quinidine

MLA

“quinidine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/quinidine. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “quinidine,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/quinidine.

Source: quinidine on Wiktionary, CC BY-SA 4.0.