English noun: pacemaker | |||
1. | pacemaker (cognition) a leading instance in its field | ||
Samples | The new policy will be a pacesetter in community relations. | ||
Synonyms | pacesetter | ||
Broader (hypernym) | example, exemplar, good example, model | ||
2. | pacemaker (body) a specialized bit of heart tissue that controls the heartbeat | ||
Synonyms | cardiac pacemaker, SA node, sinoatrial node | ||
Broader (hypernym) | cardiac muscle, heart muscle | ||
3. | pacemaker (artifact) an implanted electronic device that takes over the function of the natural cardiac pacemaker | ||
Synonyms | artificial pacemaker | ||
Broader (hypernym) | electronic device | ||
4. | pacemaker (animal) a horse used to set the pace in racing | ||
Synonyms | pacer, pacesetter | ||
Broader (hypernym) | bangtail, race horse, racehorse | ||