Dunbird \Dun"bird`\, n. [Named from its color.] (Zo["o]l.)
   (a) The pochard; -- called also dunair, and dunker, or
       dun-curre.
   (b) An American duck; the ruddy duck.

Dunker \Dun"ker\, n. [G. tunken to dip.]
   One of a religious denomination whose tenets and practices
   are mainly those of the Baptists, but partly those of the
   Quakers; -- called also Tunkers, Dunkards, Dippers,
   and, by themselves, Brethren, and German Baptists.

   Note: The denomination was founded in Germany in 1708, but
         after a few years the members emigrated to the United
         States.

   Seventh-day Dunkers, a sect which separated from the
      Dunkers and formed a community, in 1728. They keep the
      seventh day or Saturday as the Sabbath.