Definition of coterminous adjective from the Oxford Advanced Learner's Dictionary



    BrE BrE//kəʊˈtɜːmɪnəs//
    ; NAmE NAmE//koʊˈtɜːrmɪnəs//
    [not usually before noun] (formal)
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  1. 1coterminous (with something) (of countries or areas) sharing a border
  2. 2coterminous (with something) (of things or ideas) having so much in common that they are almost the same as each other He seems to regard the interests of the state as coterminous with the interests of the party in government.
  3. Word Originlate 18th cent.: alteration of conterminous, with the same meaning.
See the Oxford Advanced American Dictionary entry: coterminous