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arrhythmia.

An irregular heartbeat; a lack of a regular pulse.

10 characters3 syllables approx.English language

Meaning & usage

noun/eɪˈɹɪð.mɪ.ə//əˈɹɪð.mi.ə/
  1. An irregular heartbeat; a lack of a regular pulse.

    countable · uncountable
  2. A disease entity involving such beats, such as atrial fibrillation, ventricular tachycardia, AV nodal reentrant tachycardia, or others.

    countable · uncountable
Where this word comes from

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

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.