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pacemaker: Meaning and Definition of
pace•mak•er
Pronunciation: (pās'mā"kur), [key]
— n.
- pacesetter.
- an electronic device implanted beneath the skin for providing a normal heartbeat by electrical stimulation of the heart muscle, used in certain heart conditions.
- any specialized tissue that governs a rhythmic or cyclic biological activity, as the sinoatrial node of the heart that controls heartbeat.
See also:
- pacemaker (Thesaurus)
