gadwall
/ˈgædwɔːl/noun
(复同单, 或gadwalls)
1- a brownish-grey freshwater duck found across Eurasia and North America赤膀鸭。
1.1
- Anas strepera, family Anatidae.拉丁名Anas strepera,鸭科。
词源
mid 17th cent.: of unknown origin.