Source : Webster's Revised Unabridged Dictionary (1913)

Metallic \Me*tal"lic\, a. [L. metallicus, fr. metallum: cf. F.
   m['e]tallique. See {Metal}.]
   1. Of or pertaining to a metal; of the nature of metal;
      resembling metal; as, a metallic appearance; a metallic
      alloy.

   2. (Chem.) Of, pertaining to, or characterized by, the
      essential and implied properties of a metal, as contrasted
      with a nonmetal or metalloid; basic; antacid; positive.

Source : WordNet®

metallic
     adj : containing or made of or resembling or characteristic of a
           metal; "a metallic compound"; "metallic luster"; "the
           strange metallic note of the meadow lark, suggesting
           the clash of vibrant blades"- Ambrose Bierce [syn: {metal(a)}]
           [ant: {nonmetallic}]