wool

The term used for the fleece of lambs and sheep, but also applies to similar fibers from such animals as the angora and cashmere goats, the llama, and other animals used for clothing. lt is un like carpet wool, which is much coarser and unsuitable for clothing. Wool refers to fleece wool used for the first time in the complete manufacture of a wool product. Wool differs from hair and fur in that it has a natural felting ability. See felt, woolen, and worsted.