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BNC: 24008 COCA: 18554

pacemaker

noun

pace·​mak·​er ˈpās-ˌmā-kər How to pronounce pacemaker (audio)
1
a
: one that sets the pace for another
b
: one that takes the lead or sets an example
2
a
: a group of cells or a body part (such as the sinus node of the heart) that serves to establish and maintain a rhythmic activity
b
: an electrical device for stimulating or steadying the heartbeat or reestablishing the rhythm of an arrested heart
pacemaking noun

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