Definition of Pacemaker
Pacemaker
Pac·e·mak·er
Definition/Meaning
(noun)
A device that regulates the heartbeat, especially an artificial one implanted in the chest.
e.g. The doctor implanted a pacemaker in her chest to regulate her irregular heartbeat.
(noun)
one that establishes the pace for another in a race in order to guide others;
e.g. Pacemakers are often used by race organizers with special instructions for lap times.
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