The Collaborative International Dictionary of English v.0.48:

Bohemian \Bo*he"mi*an\, a.
   1. Of or pertaining to Bohemia, or to the language of its
      ancient inhabitants or their descendants. See Bohemian,
      n., 2.
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   2. Of or pertaining to a social gypsy or "Bohemian" (see
      Bohemian, n., 3); vagabond; unconventional; free and
      easy. [Modern]
      [1913 Webster]

            Hers was a pleasant Bohemian life till she was five
            and thirty.                           --Blackw. Mag.
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            Artists have abandoned their Bohemian manners and
            customs nowadays.                     --W. Black.
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   Bohemian chatterer, or Bohemian waxwing (Zool.), a small
      bird of Europe and America (Ampelis garrulus); the
      waxwing.

   Bohemian glass, a variety of hard glass of fine quality,
      made in Bohemia. It is of variable composition, containing
      usually silica, lime, and potash, rarely soda, but no
      lead. It is often remarkable for beauty of color.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Bohemian waxwing
    n 1: large waxwing of northern North America; similar to but
         larger than the cedar waxwing [syn: Bohemian waxwing,
         Bombycilla garrulus]