Main Entry: con·ter·mi·nous

Pronunciation: \kən-ˈtər-mə-nəs, kän-\

Function: adjective

Etymology: Latin conterminus, from com- + terminus boundary — more at term

Date: 1631

1 : having a common boundary <conterminous countries>
2 : coterminous
3 : enclosed within one common boundary <the 48 conterminous states>

— con·ter·mi·nous·ly adverb