a small but very fertile and productive province of Persia, situated south-west of Hamadan, west of Malayir, and north-west of Burujird. Pop. about 15,000. The capital is the ancient city of Nehavend, where Yazdegird, the last monarch of the Sassanian dynasty, was finally defeated by the Arabs. (A.D. 641). It has a population of about 5000, including 700 to Boo Jews; there are fine gardens, and an old citadel on a hill. It is situated at an elevation of 5540 ft., 27 m. from Doletabad (Malayir), and 25 m. from Burujird.