Muscovy duck \Mus"co*vy duck`\ [A corruption of musk duck.] (Zo["o]l.) A duck ({Cairina moschata}), larger than the common duck, often raised in poultry yards. Called also {musk duck}. It is native of tropical America, from Mexico to Southern Brazil.
muscovy duck n : large crested wild duck of Central America and South America; widely domesticated [syn: {musk duck}, {Cairina moschata}]