D defs.my
Entry 2 senses Webster, 1913

Mallard

/măl'-ẽrd/ · Mal·lard · IPA /ˈmælɚd/
01 n. A drake; the male of Anas boschas.
  1. 1.
    A drake; the male of Anas boschas.(Zool.)
  2. 2.
    A large wild duck (Anas boschas) inhabiting both America and Europe. The domestic duck has descended from this species. Called also greenhead.(Zool.) Also: greenhead