a large river of France, which taking its rise in the Pyrenean mountains, runs north-west by the city of Thoulouse, divides the provinces of Guéne and Gascony, and, visiting the city of Bordeaux, falls into the bay of Biscay, about sixty miles below that city. It has also a communication with the Mediterranean, by means of the royal canal of Lewis XIV. The tide flows up this river twenty miles above Bordeaux.