aneurysm

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++an·eu·rysm, aneurism /ˈænjəˌrɪzəm/ noun [countable]  a small place on the surface of a blood vessel that is swollen and full of blood, and that can kill you if it breaks open 动脉瘤

an·eu·rysm nounChineseSyllable  

aneurysm
an‧eu‧rysm , aneurism /ˈænyəˌrɪzəm/ noun [countable]
a small place on the surface of a blood vessel that is swollen and full of blood, and that can kill you if it breaks open

an·eur·ysmBrE /ˈænjərɪzəm/ 🔊NAmE /ˈænjərɪzəm/ 🔊 noun (medical 医学) an area of extreme swelling on the wall of an artery 动脉瘤