Source : Webster's Revised Unabridged Dictionary (1913)

Steamer \Steam"er\, n.
   1. A vessel propelled by steam; a steamship or steamboat.

   2. A steam fire engine. See under {Steam}.

   3. A road locomotive for use on common roads, as in
      agricultural operations.

   4. A vessel in which articles are subjected to the action of
      steam, as in washing, in cookery, and in various processes
      of manufacture.

   5. (Zo["o]l.) The steamer duck.

   {Steamer duck} (Zo["o]l.), a sea duck ({Tachyeres cinereus}),
      native of Patagonia and Terra del Fuego, which swims and
      dives with great agility, but which, when full grown, is
      incapable of flight, owing to its very small wings. Called
      also {loggerhead}, {race horse}, and {side wheel duck}.

Source : WordNet®

steamer
     n 1: a clam that is usually steamed in the shell [syn: {soft-shell
          clam}, {steamer clam}, {long-neck clam}]
     2: a cooking utensil that can be used to cook food by steaming
        it
     3: a ship powered by one or more steam engines [syn: {steamship}]
     4: an edible clam with thin oval-shaped shell found in coastal
        regions of the United States and Europe [syn: {soft-shell
        clam}, {steamer clam}, {long-neck clam}, {Mya arenaria}]