Source : Webster's Revised Unabridged Dictionary (1913)

Enamel \En*am"el\, n. [Pref. en- + amel. See {Amel}, {Smelt}, v.
   t.]
   1. A variety of glass, used in ornament, to cover a surface,
      as of metal or pottery, and admitting of after decoration
      in color, or used itself for inlaying or application in
      varied colors.

   2. (Min.) A glassy, opaque bead obtained by the blowpipe.

   3. That which is enameled; also, any smooth, glossy surface,
      resembling enamel, especially if variegated.

   4. (Anat.) The intensely hard calcified tissue entering into
      the composition of teeth. It merely covers the exposed
      parts of the teeth of man, but in many animals is
      intermixed in various ways with the dentine and cement.

   {Enamel painting}, painting with enamel colors upon a ground
      of metal, porcelain, or the like, the colors being
      afterwards fixed by fire.

   {Enamel paper}, paper glazed a metallic coating.