Synonyms and Antonyms for pacemaker

1. pacemaker (n.)

a specialized bit of heart tissue that controls the heartbeat

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2. pacemaker (n.)

an implanted electronic device that takes over the function of the natural cardiac pacemaker

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3. pacemaker (n.)

a horse used to set the pace in racing

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4. pacemaker (n.)

a leading instance in its field

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