arrondissement in the department of the Upper Garonne, in France, and 618 square miles in extent. It comprises nine cantons, divided into 130 communes, and peopled by 77,500 inhabitants. The capital is the city of the same name on the left bank of the Garonne. It contains 3200 inhabitants, who carry on the trades of woollen weavers, potters, and tanners. Long. 1° 20' E. Lat. 43° 30' N.