interterritorial
adjective
in·ter·ter·ri·to·ri·al ˌin-tər-ˌter-ə-ˈtȯr-ē-əl
variants or inter-territorial
: existing or occurring between territories
interterritorial trade
an interterritorial council
: relating to movement between territories
interterritorial rates for freight
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Merriam-Webster unabridged



