1. [ noun ] the rhythmic contraction and expansion of the arteries with each beat of the heart
Synonyms: pulse beat pulsation

"he could feel the beat of her heart"

Related terms: periodic_event throb diastole systole beat pulsate
2. [ noun ] a very short time (as the time it takes the eye blink or the heart to beat)
Synonyms: instant split_second twinkling wink jiffy flash trice New_York_minute blink_of_an_eye

"if I had the chance I'd do it in a flash"

Related terms: moment flash
3. [ noun ] an animating or vital unifying force

"New York is the commercial heartbeat of America"

Related terms: force
Similar spelling:   heritable