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Definition of Artificial pacemaker
1. Noun. An implanted electronic device that takes over the function of the natural cardiac pacemaker.
Medical Definition of Artificial pacemaker
1. Any device that substitutes for the normal pacemaker and controls the rhythm of the organ; especially an electronic cardiac pacemaker, which may be implanted in the chest, with electrodes attached to the external cardiac surface, or passed through the venous circulation into the right side of the heart (pervenous pacemaker). (05 Mar 2000)