NOBLE METAL

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

Any metal that is resistant to corrosion or oxidation

Classified under:

Nouns denoting substances

Hypernyms ("noble metal" is a kind of...):

metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

Hyponyms (each of the following is a kind of "noble metal"):

atomic number 79; Au; gold (a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia)

atomic number 78; platinum; Pt (a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits)

Ag; atomic number 47; silver (a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography)

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