semilunar valve

Noun
  1. A heart valve with cusps shaped like half-moons;
    Prevents blood from flowing back into the heart (synset 105402247)
    is a type of: cardiac valve, heart valve - a valve to control one-way flow of blood
    subtypes:
    • aortic valve - a semilunar valve between the left ventricle and the aorta; prevents blood from flowing from the aorta back into the heart
    • pulmonary valve - a semilunar valve between the right ventricle and the pulmonary artery; prevents blood from flowing from the artery back into the heart

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