Standard Lemma guide

extrasystole

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • rhymes with -əʊl

1

noun

Meaning 1

A premature contraction of the heart, producing an interruption or irregularity in heartbeat rhythm, associated with heart disease or the use of some pharmaceuticals.

Definition source: English Wiktionary via Wiktextract

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a premature systole resulting in a momentary cardiac arrhythmia

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: systole

History

Etymology

Etymology tree Proto-Indo-European *h1éǵh Proto-Indo-European *-s Proto-Indo-European *h1éǵhs Proto-Indo-European *-teros Proto-Indo-European *h1eǵhsteros Proto-Italic *eksteros Latin exter Latin extrā English extra- English systole English extrasystole From extra- + systole.

Across languages

Translations

6 source translations are retained for this English entry.

  • Catalan: extrasístole — premature contraction of the heart
  • French: extrasystole — premature contraction of the heart
  • German: Extrasystole — premature contraction of the heart
  • Indonesian: ekstrasistole — premature contraction of the heart
  • Portuguese: extrassístole — premature contraction of the heart
  • Spanish: extrasístole — premature contraction of the heart