​IRAK-I-AJAMI (i.e. Persian Irak), the name (now obsolete) of the important Persian province which the Arab geographers called Jebel (the mountainous region). It used to be the country bounded N. by Azerbaijan and Gílán, E. by Samnan and the central Persian desert, S. by Kerman, Fars and Arabistan, ​W. by Kermanshah and Kurdistan. Its length, N.W.-S.E., was about 600 m. from the Kaflán Kuh on the Kizil Uzain, the frontier of Azerbaijan, to the frontier of Kerman beyond Yezd, and its width, N.E.-S.W., about 300 m.