Definition of coterminous adjective from the Oxford Advanced American Dictionary

     

    coterminous

     adjective
    adjective
    NAmE//koʊˈtərmənəs//
     
    [not usually before noun](formal)
     
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  1. 1coterminous (with something) (of countries or areas) sharing a border
  2. 2 coterminous (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 upper class.
See the Oxford Advanced Learner's Dictionary entry: coterminous