me·nom·i·ni noun alsome·nom·i·nee\mə̇ˈnämənē\ (pluralmenominiormenominisalsomenomineeormenominees) 1.usually capitalized a.: an Indian people of the Upper Peninsula, Michigan, and northeastern Wisconsin b.: a member of such people c.: an Algonquian language of the Menomini people 2.often capitalized: menominee whitefish