柯林斯词典isthmus /ˈɪsməs/ (isthmuses) 1. N-COUNT An isthmus is a narrow piece of land connecting two large areas of land. 地峡[oft in names] ...the Isthmus of Panama. ...巴拿马地峡。 返回 isthmus剑桥词典 isthmus noun [C] (LAND) geography a narrow piece of land with water on each side that joins two larger areas of land 地峡 the Isthmus of Panama 巴拿马地峡 isthmus noun [C] (IN BODY) medical a narrow connection between two organ parts or structures in the body （身体）峡部 返回 isthmus