definition of
conterminous

[1] #1 conterminous s. [contiguous] connecting without a break; within a common boundary; "the 48 conterminous states"; "the contiguous 48 states". wn

[2] #2 conterminous s. [adjacent, contiguous, neighboring] having a common boundary or edge; abutting; touching; "Rhode Island has two bordering states; Massachusetts and Conncecticut"; "the side of Germany conterminous with France"; "Utah and the contiguous state of Idaho"; "neighboring cities". wn

[3] #3 conterminous s. [coextensive, coterminous] being of equal extent or scope or duration. wn