Source : Webster's Revised Unabridged Dictionary (1913)

Dipper \Dip"per\, n.
   1. One who, or that which, dips; especially, a vessel used to
      dip water or other liquid; a ladle.

   2. (Zo["o]l.)
      (a) A small grebe; the dabchick.
      (b) The buffel duck.
      (c) The water ouzel ({Cinolus aquaticus}) of Europe.
      (d) The American dipper or ouzel ({Cinclus Mexicanus}).

   {The Dipper} (Astron.), the seven principal stars in the
      constellation of the Great Bear; popularly so called from
      their arrangement in the form of a dipper; -- called also
      {Charles's Wain}. See {Ursa Major}, under {Ursa}.

Charles's Wain \Charles's Wain\ [Charles + wain; cf. AS. Carles
   w?n (for w[ae]gn), Sw. karlvagnen, Dan. karlsvogn. See
   {Churl}, and {Wain}.] (Astron.)
   The group of seven stars, commonly called the Dipper, in the
   constellation Ursa Major, or Great Bear. See {Ursa major},
   under {Ursa}.

   Note: The name is sometimes also applied to the
         Constellation.

Source : WordNet®

Charles's Wain
     n : a group of seven bright stars in the constellation Ursa
         Major [syn: {Big Dipper}, {Dipper}, {Plough}, {Wain}, {Wagon}]