A North American duck (Fuligula valisneriana), so called from the colour of the back feathers. Called also more fully canvas-back duck, and canvas-b…
| 单词 | θ39455 |
| 释义 | the world > animals > birds > freshwater birds > order Anseriformes (geese, etc.) > subfamily Merginae (duck) > [noun] > member of genus Aythya (miscellaneous) > aythya valisneriana (canvas-back) (2) canvas-back1785 A North American duck (Fuligula valisneriana), so called from the colour of the back feathers. Called also more fully canvas-back duck, and canvas-b… white-back1790 Any of various birds with white backs (cf. white-backed, adj. 1); esp. (U.S.) the canvasback duck, Aythya valisineria. |
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