ST, a town of France, capital of a cognominal arrondissement in the department of Haute Garonne, on a hill near the left bank of the Garonne, 45 miles S.W. of Toulouse. It has tribunals of primary jurisdiction and commerce; a communal college; manufactures of serge and tape; sawing, paper, and other mills; and a brisk trade in agricultural produce. Pop. (1851) of town 4905, of arrondissement, 147,096.