arrhythmia - Wiktionary, the free dictionary

English

Noun

arrhythmia (countable and uncountable, plural arrhythmias)

  • An irregular heartbeat; a lack of a regular pulse.
  • A disease entity involving such beats, such as atrial fibrillation, ventricular tachycardia, AV nodal reentrant tachycardia, or others.

Etymology

Borrowed from New Latin arrhythmia, from Ancient Greek ἀρρυθμία (arrhuthmía), equivalent to a- +‎ rhythm +‎ -ia.

Pronunciation

  • IPA: /eɪˈɹɪð.mɪ.ə/, /əˈɹɪð.mi.ə/

Printed 2026-09-15.

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