Any of various semiaquatic carnivores of the genusMustela, especially M. vison of North America, resembling the weasel and having short ears, a pointed snout, short legs, and partly webbed toes.

• 鼬（尤指水貂）：一种鼬属的半水生食肉动物，尤指北美的鼬属水貂同其它鼬属动物相似，耳短、口吻突出、腿短且部分趾间有蹼