noun
pulmonary valve stenosis
Medical term for a congenital or acquired narrowing of the pulmonary valve, restricting blood flow from the right ventricle to the pulmonary artery.
肺動脈弁狭窄症は、右心室から肺動脈への血流が妨げられる病気です。
Pulmonary valve stenosis is a condition in which blood flow from the right ventricle to the pulmonary artery is obstructed.
Compound of 肺動脈弁 (pulmonary valve) + 狭窄症 (stenosis). The exact historical derivation is uncertain; the term follows standard medical kanji formation.