noun
aneurysm
Medical term for a localized, blood-filled balloon-like bulge in the wall of a blood vessel.
脳動脈瘤が見つかり、すぐに手術が必要と言われた。
A cerebral aneurysm was found, and I was told that surgery was needed immediately.
動脈瘤は破
If an aneurysm ruptures, it can be life-threatening.