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Sinus of Valsalva

[sahy-nuh s uh v val-sal-vuh] /ˈsaɪ nəs əv vælˈsæl və/
noun, Anatomy
any of the pouches of the aorta and the pulmonary artery opposite the flaps of the semilunar valves into which blood returning to the heart flows, closing the valves.
Origin of Sinus of Valsalva Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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