the Dual Monarchy established in 1867, consisting of what are now Austria, Hungary, the Czech Republic, Slovakia, Slovenia, Croatia, and Bosnia and Herzegovina, and parts of Poland, Romania, Ukraine, and Italy. The empire was broken up after World War I
Austria-Hungary in American English
(ˈɔstriəˈhʌŋgəri)
former monarchy in central Europe (1867-1918) consisting of territory that became Austria, Hungary, and Czechoslovakia, as well as parts of Poland, Romania, Yugoslavia, and Italy