interregional

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in·ter·re·gion·al

I0196700 (ĭn′tər-rē′jə-nəl)adj. Of, involving, or connecting two or more regions: interregional migration; interregional banking.

interregional

(ˌɪntəˈriːdʒənəl) adjof, relating to, or conducted between two or more regions
Translations
interrégionalinterregionale