See also. 1  Conversion of units, for comparison with other units of length. 2  Cubic metre. 3  Metric prefix. 4  Mileage. 5  Odometer. 6  Orders of magnitude (length) 7  Square kilometre.
Wool is the fiber from the fleece of the sheep or lamb or hair of the Angora or Cashmere goat (and may include the so-called specialty fibers from the hair of the camel, alpaca, llama, and vicuna) which has never been reclaimed from any woven or felted wool product. Virgin wool and new wool are also used to refer to such never used wool.
Wool is the fibre derived from the fur of animals of the Caprinae family, principally sheep, but the hair of certain species of other mammals such as goats, alpacas and rabbits may also be called wool. This article deals explicitly with the wool produced from domestic sheep.