pacemaker

Noun
  1. A leading instance in its field (synset 105947351)
    "the new policy will be a pacesetter in community relations"
    is a type of: example, exemplar, good example, model - something to be imitated
    same as: pacesetter
  2. A specialized bit of heart tissue that controls the heartbeat (synset 105396803)
    is a type of: cardiac muscle, heart muscle - the muscle tissue of the heart; adapted to continued rhythmic contraction
    same as: cardiac pacemaker, sa node, sinoatrial node
  3. An implanted electronic device that takes over the function of the natural cardiac pacemaker (synset 103875968)
    is a type of: electronic device - a device that accomplishes its purpose electronically
    same as: artificial pacemaker
  4. A horse used to set the pace in racing (synset 102390795)
    is a type of: bangtail, race horse, racehorse - a horse bred for racing
    same as: pacer, pacesetter

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