pulsation

Pulsation is a throbbing, repeating rhythm, like the pulsation of your blood in your ears when you're running or the pulsation of music in a loud dance club.

The pulsation of your heart is what pumps blood through your body — it moves rhythmically, expanding and contracting. Anything that throbs this way is also pulsation, like the when the car stereo is turned up so loud you can feel the beat of the music through the soles of your feet. Pulsation comes from the Latin pulsationem, "a beating or striking," and its root meaning "to thrust, strike, or drive."

Definitions of pulsation
  1. noun
    the rhythmic contraction and expansion of the arteries with each beat of the heart
    synonyms: beat, heartbeat, pulse
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    types:
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    diastole
    the widening of the chambers of the heart between two contractions when the chambers fill with blood
    systole
    the contraction of the chambers of the heart (especially the ventricles) to drive blood into the aorta and pulmonary artery
    pounding, throb, throbbing
    an instance of rapid strong pulsation (of the heart)
    extrasystole
    a premature systole resulting in a momentary cardiac arrhythmia
    type of:
    periodic event, recurrent event
    an event that recurs at intervals
  2. noun
    a periodically recurring phenomenon that alternately increases and decreases some quantity
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    type of:
    phenomenon
    any state or process known through the senses rather than by intuition or reasoning
  3. 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”
    synonyms: impulse, pulse, pulsing
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    type of:
    undulation, wave
    (physics) a movement up and down or back and forth
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