a fish-eating diving duck with a long, thin serrated and hooked bill 秋沙鸭。 亦称 sawbill
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
语源
mid 17th cent.: modern Latin, from Latin mergus 'diver' (from mergere 'to dive') + anser 'goose'