pacemakers
pace-mak-ers
noun
Small electronic devices surgically implanted to regulate an irregular heartbeat.
"Many patients rely on pacemakers to maintain a steady heart rhythm."
noun
Runners who set a consistent speed for others to follow in a race.
"The pacemakers led the marathon for the first few miles."
Thesaurus
Synonyms: cardiac pacemaker, sinoatrial node, SA node, pacer, pacesetter, artificial pacemaker