pulsation

noun pulsation

• beat — If you beat someone or something, you hit them very hard.
• frequency — Also, frequence. the state or fact of being frequent; frequent occurrence: We are alarmed by the frequency of fires in the neighborhood.
• heartbeat — a pulsation of the heart, including one complete systole and diastole.
• im — instant message.
• impulse — the influence of a particular feeling, mental state, etc.: to act under a generous impulse; to strike out at someone from an angry impulse.