noun
patent ductus arteriosus
Medical term for a congenital heart defect where the ductus arteriosus fails to close after birth.
動脈管開存症は新生児に見られる心疾患の一つです。
Patent ductus arteriosus is one of the heart conditions seen in newborns.
Compound of 動脈管 (ductus arteriosus) + 開存 (patency) + 症 (condition/disease).