extrasystole

/ˌɛkstrəˈsɪstəli/
IPA guide

Other forms: extrasystoles

Definitions of extrasystole
  1. noun
    a premature systole resulting in a momentary cardiac arrhythmia
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    type of:
    systole
    the contraction of the chambers of the heart (especially the ventricles) to drive blood into the aorta and pulmonary artery
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