Pacemaker

/pˈe‍ɪsme‍ɪkɐ/

/ˈpeɪsˌmeɪkɝ/

Pacemaker

an electronic device implanted inside a person's body to help regulate their heart rate

a horse used to set the pace in racing

synonyms : pacer

a specialized bit of heart tissue that controls the heartbeat

a leading instance in its field

synonyms : pacesetter

Examples

1. Pacemaker cells operate the same way, except for that initial stimulus.

2. This patient has a pacemaker.

3. He's had pacemakers.

4. Number 10 is a pacemaker.