An element that has qualities making it biocompatible, bioinert, and nontoxic.
A light metallic element which does not corrode.
A metallic element found in combination with minerals; atomic weight, 47.90; atomic number, 22; specific gravity, 4.54. In dentistry, it is used as an alloy chiefly for appliances and implants because of its biological acceptance and resistance to corrosion.