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Definitions of semilunar
  1. adjective
    resembling the new moon in shape
Definition that contains semilunar
  • 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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