sinus node

[ sahy-nuhs ]
/ ˈsaɪ nəs /

noun Anatomy.

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Medical definitions for sinus node

sinus node

n.

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