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heartbeat
(redirected from Heartbeats)

    Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
heartbeat /heart·beat/ (hahrt´bet) a complete cardiac cycle, during which the electrical impulse is conducted and mechanical contraction occurs.
heart·beat (härtbt)
n.
A single complete pulsation of the heart.
heartbeat
the cycle of contraction of the heart muscle, during which the chambers of the heart contract. The beat begins with a rhythmic impulse in the sinoatrial node, which serves as a pacemaker for the heart. See also heart.
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