an arrondissement of the department of the Tara, in France, extending over 511 square miles. It is divided into eight cantons and eighty-four communes, and contains 63,376 inhabitants. The chief place is a city of the same name, situated on the Tara, which is navigable as far as this town. The ware made near this city is the best of the department, and chiefly exported from Bordeaux to foreign markets. Gaillac contains 1503 houses and 6636 inhabitants. Long. 1° 45' E. Lat. 43° 30' N.