What does "damascus" mean?

Damascus: A city of Syria. Damascus blade, a sword or scimiter, made chiefly at Damascus, having a variegated appearance of watering, and proverbial for excellence. -- Damascus iron, or Damascus twist, metal formed of thin bars or wires of iron and steel elaborately twisted and welded together; used for making gun barrels, etc., of high quality, in which the surface, when polished and acted upon by acid, has a damasc appearance. -- Damascus steel. See Damask steel, under Damask, a.