- [noun] the rhythmic contraction and expansion of the arteries with each beat of the heart; "he could feel the beat of her heart"
Synonyms: pulse, pulsation, beat
- [noun] 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"
Synonyms: blink of an eye, flash, instant, jiffy, split second, trice, twinkling, wink, New York minute
- [noun] an animating or vital unifying force; "New York is the commercial heartbeat of America"