Adige (anc. Athesis; Ger. Etsch), a river of the Tyrol and N. Italy, rises in the Swiss Alps, and flows E., S., S. E., and again E. about 220 m. to the Adriatic, S. of Chioggia. On its banks are the towns of Trent and Roveredo in the Tyrol, and the fortresses of Verona and Legnago in Venetia.