Meaning of CARDIAC CYCLE

Pronunciation:			'kârdee`ak 'sIkul
WordNet Dictionary
	Definition:		[n]  the complete cycle of events in the heart from the beginning of one heart beat to the beginning of the next; an electrical impulse in 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"
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	See Also:		cycle, oscillation
Medical Dictionary
	Definition:		Period from the beginning of one heartbeat to the beginning of the next.