'Canvasback' definitions:
Definition of 'canvasback'
From: WordNet
noun
North American wild duck valued for sport and food [syn: canvasback, canvasback duck, Aythya valisineria]
Definition of 'Canvasback'
From: GCIDE
- Canvasback \Can"vas*back`\, 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]