The dense, soft, often curly hair forming the coat of sheep and certain other mammals, such as the goat and alpaca, consisting of cylindrical fibers of keratin covered by minute overlapping scales and much valued as a textile fabric.

• 毛浓密的、柔软的、经常卷曲的毛，形成羊和其它哺乳动物的外皮（如山羊和羊驼），由被精细重叠的鳞片覆盖的圆筒形角质素纤维构成，作为一种织物纤维而十分珍贵