heartbeat








noun Physiology.

  1. a pulsation of the heart, including one complete systole and diastole.

noun

  1. one complete pulsation of the heartSee diastole, systole
n.

1850, from heart + beat (n.). From the beginning used as a figure for “a very brief time.”

n.

  1. A single complete pulsation of the heart.

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