eclipse plumage

基本解释

• 非婚羽

英英字典

柯林斯英英字典

• seasonal plumage that occurs in certain birds after the breeding plumage and before the winter plumage: characterized by dull coloration

• eclipse plumage剑桥字典
• eclipse plumage柯林斯字典

专业释义

生物學

• 鼕羽
• 蝕羽