English edit

 
English Wikipedia has an article on:
Wikipedia

Noun edit

noble metal (plural noble metals)

  1. (inorganic chemistry, alchemy) A metal resistant to corrosion, oxidizing and tarnishing, such as gold or platinum.
    Synonym: perfect metal

Usage notes edit

So termed because they resist being made base. Chemists generally recognize them as the platinum group of elements, plus gold. Opinions vary on whether some other unreactive metals, such as copper, silver, rhenium, or mercury, should be included.

Translations edit

See also edit