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coronary sinus

noun Anatomy.

a large venous channel in the heart wall that receives blood via the coronary veins and empties into the right atrium.

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Origin of coronary sinus

First recorded in 1825–35

Words nearby coronary sinus

coronary cushion, coronary failure, coronary heart disease, coronary insufficiency, coronary occlusion, coronary sinus, coronary sulcus, coronary thrombosis, coronary valve, coronary vein, coronate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Medical definitions for coronary sinus

coronary sinus

n.

A short trunk receiving most of the veins of the heart, running in the posterior part of the coronary sulcus and emptying into the right atrium between the inferior vena cava and the atrioventricular orifice.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.