interethnic

in·ter·eth·nic

I5203250 (ĭn′tər-ĕth′nĭk)adj. Of, relating to, involving, or representing different ethnic groups: an interethnic marriage; interethnic political coalitions.
[inter- + ethnic.]
in′ter·eth′ni·cal·ly adv.

interethnic

(ˌɪntərˈɛθnɪk) adjoccurring between or involving two or more ethnic groups