metallic element,
metal any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
chromite a brownish-black mineral; the major source of chromium
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Wiktionary
Substantiv
chromium -
A metallic chemical element symbol Cr with an atomic number of 24.
Wikipedia
Chromium is a chemical element which has the symbol Cr and atomic number 24, first element in Group 6. It is a steely-gray, lustrous, hard metal that takes a high polish and has a high melting point. It is also odorless, tasteless, and malleable.
OmegaWiki Dictionary
Ω
chromium A hard grey metallic element that takes a high polish, occurring principally in chromite: used in steel alloys and electroplating to increase hardness and corrosion-resistance.
