/ ˈwʊd ˈdək /
A showy American duck (Aix sponsa) which nests in tree cavities and the males of which have a large crest and iridescent plumage varied with green, purple, black, white, and chestnut.
Showy North American duck that nests in hollow trees; SYN. summer duck, wood widgeon, Aix sponsa. wood-duck