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Noun: pulsation  púl'sey-shun
  1. The rhythmic contraction and expansion of the arteries with each beat of the heart
    "he could feel the pulsation of her heart";
    - pulse, heartbeat, beat
     
  2. A periodically recurring phenomenon that alternately increases and decreases some quantity
    "The pulsation of a variable star causes its brightness to change over time"
     
  3. (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";
    - pulsing, pulse, impulse

Derived forms: pulsations

Type of: periodic event, phenomenon, recurrent event, undulation, wave

Encyclopedia: Pulsation