pulsations

Noun

• (electronics) a sharp transient wave in the normal electrical state (or a series of such transients)
  • "the pulsations seemed to be coming from a star"
• a periodically recurring phenomenon that alternately increases and decreases some quantity
• the rhythmic contraction and expansion of the arteries with each beat of the heart
• plural of pulsation

Synonyms

beat, heartbeat, impulse, pulsation, pulse, pulsing