動どう脈みゃく瘤りゅうどうみゃくりゅうMeanings1nounaneurysmMedical term for a localized, blood-filled balloon-like bulge in the wall of a blood vessel.脳のう動どう脈みゃく瘤りゅうが見みつかり、すぐに手しゅ術じゅつが必ひつ要ようと言いわれ