Definition of coronary sinus
: 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
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“Coronary sinus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coronary%20sinus. Accessed 7 Mar. 2021.
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Time Traveler for coronary sinus
The first known use of coronary sinus was in 1831
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