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.

Origin of coronary sinus

First recorded in 1825–35

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.