What does "metallic" mean?

Metallic: (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. 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.