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coterminous

adjective
 
 
/ˌkəʊˈtɜː.mɪ.nəs/ US  /ˌkoʊˈtɝː-/ formal

Definition

having or meeting at a shared border or limit: France is coterminous with Italy.Next to and beside coterminously
 
 
/-li/ adverb
(Definition of coterminous adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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