The Collaborative International Dictionary of English v.0.48:

Steamer \Steam"er\ (-[~e]r), n.
   1. A vessel propelled by steam; a steamship or steamboat.
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   2. A steam fire engine. See under Steam.
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   3. A road locomotive for use on common roads, as in
      agricultural operations.
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   4. A vessel in which articles are subjected to the action of
      steam, as in washing, in cookery, and in various processes
      of manufacture.
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   5. (Zool.) The steamer duck.
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   Steamer duck (Zool.), 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.
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