semilunar valve

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Definitions from WordNet

Noun semilunar valve has 1 sense

semilunar valve - a heart valve with half-moon-shaped cusps; prevents blood from flowing back into the heart
--₁ is a kind of heart valve, cardiac valve
--₁ has particulars: aortic valve; pulmonary valve

Definitions from the Web

Semilunar Valve

Noun: A valve in the heart that prevents the backflow of blood from the aorta and the pulmonary artery back into the ventricles.

Example: The semilunar valves ensure that blood flows forward through the heart and does not leak backward into the ventricles.

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