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.

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, coronary-care unit

Origin of coronary sinus

First recorded in 1825–35

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine 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.