(ˈ)kō|tərmənəs, -|tə̄m- adjective
Etymology: alteration of conterminous
1. : having the same or coincident boundaries : covering or involving the same area
the city of Washington and the District of Columbia are coterminous
2. : coincident or coextensive in range, scope, limit, time, or duration
the 35 year period … coterminous with the career of the hardy Champlain — Allan Nevins & H.S.Commager
: identical with
since folk culture has always existed, a study of its origins is coterminous with the study of the origins of culture itself — S.W.Mintz
Synonyms: see adjacent