腹ふく部ぶ大だい動どう脈みゃく瘤りゅうMeanings1nounabdominal aortic aneurysmmedicineMedical term for a localized enlargement of the abdominal aorta.腹ふく部ぶ大だい動どう脈みゃく瘤りゅうは破は裂れつすると命いのちに関かかわる。A ruptured abdominal aortic aneurysm is life-threatening.