heartbeat

باللغة العربية: نَبْض، نَبْضُ القَلْب

1. One pulsation of the heart; especially an irregular one, hence the emotion which causes it. · The policeman waited for a heartbeat in vain.· He alone gives me such heartbeats.
2. The rhythm at which a heart pulsates, a cardiac indicator. · If your heartbeat doesn't normalize soon, consult a doctor!
3. A driving impulse or vital force; the vital center of something. · Music is the heartbeat of the people.
4. A very short space of time; an instant. · The ambulance arrived in a heartbeat.
5. A periodic signal generated by hardware or software to indicate normal operation or to synchronize other parts of a system.

الجمع heartbeats