pulmonary atresia
noun [ U ] medical specialized uk/ˌpʊl.mə.nər.i əˈtriː.ʃə/ us/ˈpʊl.məˌner.i əˈtriː.ʃə/
肺动脉闭锁
a congenital disorder in which the pulmonary valve (= a valve in the heart) closes so that blood does not flow from the heart to the lungs