interterritorial

[ in-ter-ter-i-tawr-ee-uh l, -tohr- ]
/ ˌɪn tərˌtɛr ɪˈtɔr i əl, -ˈtoʊr- /

adjective

existing between territories: interterritorial laws.

Origin of interterritorial

An Americanism dating back to 1885–90; inter- + territorial
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019