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Noun: cardiac cycle  'kaa(r)-dee,ak 'sI-kul
  1. The complete cycle of events in the heart from the beginning of one heart beat to the beginning of the next; an electrical impulse conducted through the heart muscle that constricts the atria which is followed by constriction of the ventricles
    "the cardiac cycle can be shown on an electrocardiogram"

Derived forms: cardiac cycles

Type of: cycle, oscillation

Encyclopedia: Cardiac cycle