Mal″lard (?), n. [F. malari,fr. mâle male + -art =-ard. See Male, a., and -ard.] 1. (Zoöl.) A drake; the male of Anas boschas.
2. (Zoöl.) A large wild duck (Anas boschas) inhabiting both America and Europe. The domestic duck has descended from this species. Called also greenhead.