merganser
/mɜːˈgænsə(r)/noun
1- a fish-eating diving duck with a long, thin serrated and hooked bill秋沙鸭。亦称SAWBILL.
1.1
- Genus Mergus, family Anatidae: six species, including the red-breasted merganser (M. serrator), goosander, and smew.秋沙鸭属, 鸭科：6种, 包括红胸秋沙鸭（拉丁名M. serrator）、普通秋沙鸭和斑头秋沙鸭。
词源
mid 17th cent.: modern Latin, from Latin mergus 'diver' （from mergere 'to dive'） + anser 'goose'.