| / English Dictionary |
NOBLE METAL
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
Any metal that is resistant to corrosion or oxidation
Classified under:
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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