'heartbeat' definitions:

Definition of 'heartbeat'

From: WordNet
noun
The rhythmic contraction and expansion of the arteries with each beat of the heart; "he could feel the beat of her heart" [syn: pulse, pulsation, heartbeat, beat]
noun
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" [syn: blink of an eye, flash, heartbeat, 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"

Definition of 'heartbeat'

From: GCIDE
  • heartbeat \heartbeat\ n. the audible and palpable rhythmic contraction and expansion of the arteries with each beat of the heart; as, he listened to her heartbeat with a stethoscope.
  • Syn: pulse, pulsation, beat. [WordNet 1.5]
  • in a heartbeat immediately. [PJC]

Synonyms of 'heartbeat'

From: Moby Thesaurus

Words containing 'heartbeat'