 pacemaker |
||
| 1. | [ noun ] an implanted electronic device that takes over the function of the natural cardiac pacemaker | |
| Synonyms: | artificial_pacemaker | |
| Related terms: | electronic_device | |
| 2. | [ noun ] (anatomy,zoology) a specialized bit of heart tissue that controls the heartbeat | |
| Synonyms: | sinoatrial_node SA_node cardiac_pacemaker | |
| Related terms: | cardiac_muscle | |
| 3. | [ noun ] a leading instance in its field | |
| Synonyms: | pacesetter | |
| Examples: | "the new policy will be a pacesetter in community relations" |
|
| Related terms: | exemplar | |
| 4. | [ noun ] (zoology,horse racing) a horse used to set the pace in racing | |
| Synonyms: | pacesetter pacer | |
| Related terms: | racehorse pace | |
| Similar spelling: |
peacemaker pajamas |
|
