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artificial pacemaker

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n.

An electronic device that substitutes for the natural pacemaker of the heart. It may be surgically implanted or placed externally on the chest.

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Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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