pacemaker
/ˈpeɪsˌmeɪkəɹ/ noun
Forms pacemakers peacemaker
- noun (anatomy) Specialized cells which stimulate the heart to beat. “natural pacemaker”
- noun (by extension, medicine) A medical implement that is used to stimulate a heart to beat by simulating the action of the natural pacemaker. “artificial pacemaker”
- noun (now uncommon) One who sets the pace in a race, to guide the others.
Synonyms
pacesetter cardiac pacemaker sinoatrial node SA node artificial pacemaker pacer
Etymology
From pace + maker.
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “pacemaker”, CC BY-SA 4.0. Details