heartbeat

Other Definitions
heartbeat (enc)

Noun	1.	heartbeat - the rhythmic contraction and expansion of the arteries with each beat of the heart; "he could feel the beat of her heart" beat, pulse, pulsation periodic event, recurrent event - an event that recurs at intervals diastole - the widening of the chambers of the heart between two contractions when the chambers fill with blood systole - the contraction of the chambers of the heart (especially the ventricles) to drive blood into the aorta and pulmonary artery throbbing, pounding, throb - an instance of rapid strong pulsation (of the heart); "he felt a throbbing in his head"
	2.	heartbeat - a very short time (as the time it takes the eye blink or the heart to beat); "if I had the chance I'd do it in a flash" instant, jiffy, New York minute, split second, trice, twinkling, wink, blink of an eye, flash minute, moment, second, bit - an indefinitely short time; "wait just a moment"; "it only takes a minute"; "in just a bit"
	3.	heartbeat - an animating or vital unifying force; "New York is the commercial heartbeat of America" force - a powerful effect or influence; "the force of his eloquence easily persuaded them"

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