| canvasback | (n) North American wild duck valued for sport and food, Syn. Aythya valisineria, canvasback duck |
| Canvasback | n. (Zool.) A Species of duck (Aythya vallisneria), esteemed for the delicacy of its flesh. It visits the United States in autumn; particularly Chesapeake Bay and adjoining waters; -- so named from the markings of the plumage on its back. [ 1913 Webster ] |