SEMILUNAR VALVE


Meaning of SEMILUNAR VALVE in English

noun Date: circa 1719 any of the crescent-shaped cusps that occur as a set of three between the heart and the aorta and another of three between the heart and the pulmonary artery, are forced apart by pressure in the ventricles during systole and pushed together by pressure in the arteries during diastole, and prevent regurgitation of blood into the ventricles

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.