fiber sheared from animals (such as sheep) and twisted into yarn for weaving
source: WordNet 3.0
outer coat of especially sheep and yaks
source: WordNet 3.0
The soft and curled, or crisped, species of hair which grows on sheep and some other animals, and which in fineness sometimes approaches to fur; -- chiefly applied to the fleecy coat of the sheep, which constitutes a most essential material of clothing in all cold and temperate climates.