coronary sinus

noun

: a venous channel that is derived from the sinus venosus, is continuous with the largest of the cardiac veins, receives most of the blood from the walls of the heart, and empties into the right atrium

Word History

First Known Use

1831, in the meaning defined above

Medical Definition

coronary sinus

noun

: a venous channel that is derived from the sinus venosus, is continuous with the largest of the cardiac veins, receives most of the blood from the walls of the heart, and empties into the right atrium