Heartbeat
/ˈhɑːtˌbiːt/
noun
One pulsation of the heart; especially an irregular one, hence the emotion which causes it.
“He alone gives me such heartbeats”
The rhythm at which a heart pulsates, a cardiac indicator
“If your heartbeat doesn't normalize soon, consult a doctor!”
A driving impulse or vital force.
“Music is the heartbeat of the people.”
Synonyms: pulse