#pulsation__heartbeat__beat  the rhythmic contraction and expansion of the arteries with each beat of the heart; "he could feel the beat of her heart"
  supertype:  #periodic_event__recurrent_event__recurrentevent  an event that recurs at intervals
  subtype:  #diastole  the widening of the chambers of the heart between two contractions when the chambers fill with blood
  subtype:  #systole  the contraction of the chambers of the heart (especially the ventricles) to drive blood into the aorta and pulmonary artery
  subtype:  #pounding__throb__throbbing  an instance of rapid strong pulsation (of the heart); "he felt a throbbing in his head"

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