noun
: the wave of cardiac excitation passing from the sinoatrial node to the atrioventricular node and along the atrioventricular bundle and initiating the cardiac cycle ; broadly : heartbeat
noun
: the wave of cardiac excitation passing from the sinoatrial node to the atrioventricular node and along the atrioventricular bundle and initiating the cardiac cycle ; broadly : heartbeat
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012