#1
heartbeat n. [
pulse, pulsation, beat] the rhythmic contraction and expansion of the arteries with each beat of the heart; "he could feel the beat of her heart"
. wn #2
heartbeat n. [
blink of an eye, flash, instant, jiffy, split second, trice, twinkling, wink, New York minute] a very short time (as the time it takes the eye to blink or the heart to beat); "if I had the chance I'd do it in a flash"
. wn #3
heartbeat n. an animating or vital unifying force; "New York is the commercial heartbeat of America"
. wn