Source : Webster's Revised Unabridged Dictionary (1913)

   {Metallic iron}, iron in the state of the metal, as
      distinquished from its ores, as magnetic iron.

   {Metallic paper}, paper covered with a thin solution of lime,
      whiting, and size. When written upon with a pewter or
      brass pencil, the lines can hardly be effaced.

   {Metallic tinking} (Med.), a sound heard in the chest, when a
      cavity communicating with the air passages contains both
      air and liquid.