an arrondissement of the department of Finistere, in France, extending over three hundred and sixteen square miles. It is divided into five cantons and twenty communes, and contains 37,200 inhabitants. The capital is the city of the same name. It stands in a rich valley, where the rivers Isolle and Elle unite their waters, and form a small and shallow harbour. It is an ill-built place, and much scattered, but contains 800 houses and 5800 inhabitants. Long. 3.39.W. Lat. 47.51.58. N.