APT, a city, chief of the arrondissement of the same name in France, situated on the river Calavon. It has a cathedral, and the inhabitants amount to 5374, who find employment in making cotton and silk goods, in distilleries, china manufactories, and especially in extracting essences from lavender, thyme, and other plants. It is in long. 5. 17. 47. E. and lat. 43. 52. 29. N.