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Merriam-Webster Online Dictionary
pacemaker
One entry found for pacemaker.
Main Entry: pace�mak�er
Pronunciation: 'pAs-"mA-k&r
Function: noun 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 (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 - pace�mak�ing /-ki[ng]/ noun
