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Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
quinidine is a noun meaning "cardiac drug (trade names Quinidex and Quinora) used to treat certain heart arrhythmias". It carries one recorded sense.
cardiac drug (trade names Quinidex and Quinora) used to treat certain heart arrhythmias
trade name
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for quinidine come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.