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Meaning of PACEMAKER

Pronunciation:  'peys`meykur

WordNet Dictionary
  1. [n]  a horse used to set the pace in racing
  2. [n]  an implanted electronic device that takes over the function of the natural cardiac pacemaker
  3. [n]  a specialized bit of heart tissue that controls the heartbeat

PACEMAKER is a 9 letter word that starts with P.


 Synonyms: artificial pacemaker, cardiac pacemaker, pacer, pacesetter, SA node, sinoatrial node
 See Also: bangtail, cardiac muscle, electronic device, heart muscle, race horse, racehorse



Medical Dictionary
 Definition: an electronic device that is surgically implanted into the patient's heart and chest to regulate heartbeat.
Biology Dictionary
 Definition: A pacemaker is something which initiates an action and controls the rhythm of a series of actions. The physiologic pacemaker of the heart is the sinus node. An artificial pacemaker is a device implanted in a patient which functions when the physiologic pacemaker fails.