Adda äd´dä [key], river, 194 mi (312 km) long, rising in the Rhaetian Alps, N Italy, and flowing SW through Lake Como, then S into the Po River near Cremona. Its upper course furnishes much electric power the lower river irrigates the Lombard plain. Many battles have been fought along its course, notably the Battle of Lodi (1796).

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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