What do a.m. and p.m. stand for?

noble metal

any of a number of metals, as gold, silver, mercury, or platinum, that resist oxidation when heated in air, and solution by inorganic acids.
Origin of noble metal
1350-1400; Middle English: precious metal Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for noble metal
  • Her research background is in heterogeneous catalysis and highly dispersed noble metal catalysts.
  • Also, in addition to promoting oxygen storage, ceria also helps maintain the dispersion of the catalyst's noble metal particles.

Word of the Day

Difficulty index for noble metal

Few English speakers likely know this word

Word Value for noble

Scrabble Words With Friends

Nearby words for noble metal