Originally Posted by ALEX
Marius is correct. Damascus means any pattern, and further categorizes into mechanical (pattern welded) and true/Oriental (crucible/wootz). Even artificially induced pattern such as acid etch is also Damascus.
Refer to Leo Figiel "On Damascus Steel" classic.
People use the term "damascus" incorrectly (in my opinion) to describe several types of steel, but this term is most accurately used to describe wootz / watered steel and not pattern welded which is a completely different type.
Purdue University, Materials Engineering