isthmus是什么意思音标:英 ['ɪsməs]美 [ˈɪsməs]

n. 地峡, 峡部
[医] 峡

n. a relatively narrow strip of land (with water on both sides) connecting two larger land areas
n. a cord-pke tissue connecting two larger parts of an anatomical structure

isthmus的用法和例句：

1.The bone punctured the aortic isthmus, causing an osseous pinch.

骨头会刺破主动脉峡 并造成挤压