binational

bi·na·tion·al

B0256200 (bī-năsh′ə-nəl, -năsh′nəl)adj. Of, relating to, or involving two nations.

binational

(ˌbaɪˈnæʃənəl) adjinvolving two nations

bi•na•tion•al

(baɪˈnæʃ ə nl)

adj. of or pertaining to two nations. [1885–90]