Any of several large sea ducks,especially of the genus Somateria of northern regions,having soft,commercially valuable down and predominantly black and white plumage in the male.

• 绒鸭一种大海鸭，尤指北部地区的欧绒鸭属，有柔软的有商业价值的鸭绒，雄鸭毛主要为黑白色。