coterminous
/kəʊˈtɜːmɪnəs/adjective
- having the same boundaries or extent in space, time, or meaning（在时间、空间、含义等方面）同起讫的; 有共同边界的; 同样广泛的：
the coterminous Borough and Parliamentary Constituency of Blyth Valley
毗连的布莱斯谷自治市镇和议会选区。
词源
late 18th cent.: alteration of CONTERMINOUS.