POLESINO DE ROVIGO, a province of Italy, in the republic of Venice, lying to the north of the river Po; and bounded on that side by the Paduan, on the south by the Ferrarese, on the east by Degado, and on the west by the Veronese. It is 45 miles in length, and 17 in breadth, and is a fertile country. Rovigo is the capital.