Source : Webster's Revised Unabridged Dictionary (1913)

Skimmer \Skim"mer\, n.
   1. One who, or that which, skims; esp., a utensil with which
      liquids are skimmed.

   2. (Zo["o]l.) Any species of longwinged marine birds of the
      genus {Rhynchops}, allied to the terns, but having the
      lower mandible compressed and much longer than the upper
      one. These birds fly rapidly along the surface of the
      water, with the lower mandible immersed, thus skimming out
      small fishes. The American species ({R. nigra}) is common
      on the southern coasts of the United States. Called also
      {scissorbill}, and {shearbill}.

   3. (Zo["o]l.) Any one of several large bivalve shells,
      sometimes used for skimming milk, as the sea clams, and
      large scallops.