semilunar valve

English Thesaurus

1. a heart valve with cusps shaped like half-moons; prevents blood from flowing back into the heart (noun.body)

hypernym	:	cardiac valve, heart valve,
definition	:	a valve to control one-way flow of blood (noun.body)

hyponym	:	aortic valve,
definition	:	a semilunar valve between the left ventricle and the aorta; prevents blood from flowing from the aorta back into the heart (noun.body)

hyponym	:	pulmonary valve,
definition	:	a semilunar valve between the right ventricle and the pulmonary artery; prevents blood from flowing from the artery back into the heart (noun.body)