This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Having a boundary in common; contiguous: The northern border of the United States is conterminous with the southern border of Canada.

adj. Contained in the same boundaries; coextensive: the conterminous 48 states.

adj. Having the same scope, range of meaning, or extent in time.

adj. Meeting end-to-end or at the ends.

adj. Adjoining; sharing a boundary.

adj. Having the same scope, range of meaning, or extent in time.

adj. Said of linked or related property leases that expire together.

adj. Having the same bounds, or limits; bordering upon; contiguous.

Having the same limit; bordering; touching at the boundary; contiguous.

. Having the same borders or limits, and hence of the same extent or size; of equal extension.

. In zoöl., having the same limitation or definition: said of classificatory groups.

Also coterminous.

adj. having a common boundary or edge; abutting; touching

adj. being of equal extent or scope or duration

adj. connecting without a break; within a common boundary

"Paper Title: Implications of recent sea level rise science for low-elevation areas in coastal cities of the conterminous U.S.."

connected    commensurate   

contiguous   

extra-virgin    one-fifteen    95-year-old    Hamish    zygomatic    Sudeten    Day-Glo    supposed    satin-smooth    semicontinuous