1. asystole

noun. absence of systole; failure of the ventricles of the heart to contract (usually caused by ventricular fibrillation) with consequent absence of the heart beat leading to oxygen lack and eventually to death.


  • cardiac arrest
  • cardiopulmonary arrest


  • a- (English)
  • a- (Anglo-Norman)
  • systole (English)

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Sentences with asystole

1. Noun, singular or mass
High potassium can ultimately cause your individual muscle fibers to become uncoordinated, leading to muscle twitching and a heart rhythm disorder known as ventricular fibrillation or asystole.