AJACCIO, or ADJAZZO, an arrondissement in the island and department of Corsica, in the Mediterranean, containing 12 cantons and 72 communes, with 53,463 inhabitants. Its extent is 736 square miles, or 471,000 English acres. The capital, which bears the same name, and is the best built town in the island, is situated in a fertile territory, which produces excellent wines. It has a small citadel and an excellent harbour, and contains 10,460 inhabitants. It is celebrated as the birthplace of Napoleon Bonaparte, to whose memory a column has been here erected.