The Collaborative International Dictionary of English v.0.48:
Enamel \En*am"el\, v. t. [imp. & p. p. Enameledor Enamelled;
   p. pr. & vb. n. Enameling or Enamelling.]
   1. To lay enamel upon; to decorate with enamel whether inlaid
      or painted.
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   2. To variegate with colors as if with enamel.
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            Oft he [the serpent]bowed
            His turret crest and sleek enameled neck. --Milton.
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   3. To form a glossy surface like enamel upon; as, to enamel
      card paper; to enamel leather or cloth.
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   4. To disguise with cosmetics, as a woman's complexion.
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