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subsidiary atrial pacemaker

subsidiary atrial pacemaker definition - medical

sub·sid·i·ar·y atrial pacemaker (səb-sĭdˈē-ĕrˌē)

noun
A secondary source for rhythmic control of the heart, available for controlling cardiac activity if the sinoatrial pacemaker fails.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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