Definition of Pacemaker
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(noun) a horse used to set the pace in racing
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(noun) an implanted electronic device that takes over the function of the natural cardiac pacemaker
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(noun) a specialized bit of heart tissue that controls the heartbeat
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(noun) a leading instance in its field; "the new policy will be a pacesetter in community relations"
Antonyms of Pacemaker
No Antonyms Found.
Homophones of Pacemaker
No Homophones Found.