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sinus node

[sahy-nuh s] /ˈsaɪ nəs/
noun, Anatomy. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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sinus-node in Medicine

sinus node n.
See sinoatrial node.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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