n. A coarse woolen stuff, woven of goats' or camels' or other hair or wool in Syria, Arabia, and neighboring countries.n. An outer garment made of the above, very simple in form, worn by the Arabs of the desert.n. A garment of similar shape worn in the towns, made of finer material.n. Also spelled abba.n. An altazimuth instrument, designed by Antoine d'Abbadie, for determining latitude on land without the use of an artificial horizon.