an arrondissement in the department of the Aube, in France, extending over 499 square miles, or 319,360 acres, and containing four cantons, 90 communes, and 33,260 inhabitants.—The capital of the arrondissement is of the same name, containing 366 houses, and 2500 inhabitants, who carry on some manufactures of cotton and of hosiery, and have a considerable trade in corn by means of the river Aube, on whose left bank it is situated. Long. 4° 14'. E. Lat. 48° 30'. N.