ERBIL, a town of Persia, in the pachalic of Bagdad; the ancient Arbela, where Alexander the Great defeated Darius. It is situated on an eminence commanding an extensive plain, which abounds in grain and fruit. It is surrounded by walls, but is now a poor place, containing about 2000 or 3000 Kurds or Chaldeans. It is sixty miles east of Mosul. Long. 43. 20. E. Lat. 36. 11. N.