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chromium
[kroh-mee-uhm]
noun
a lustrous, hard, brittle, metallic element used in alloy steels for hardness and corrosion resistance, as in stainless steel, and for plating other metals: chromium salts are used as pigments and mordants. Cr; 51.996; 24; 7.1.
chromium
/ ˈəʊɪə /
noun
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. Symbol: Cr; atomic no: 24; atomic wt: 51.9961; valency: 2, 3, or 6; relative density: 7.18–7.20; melting pt: 1863±20°C; boiling pt: 2672°C
chromium
A hard, shiny, steel-gray metallic element that is rust-resistant and does not tarnish easily. It is used to plate other metals, to harden steel, and to make stainless steel and other alloys. Atomic number 24; atomic weight 51.996; melting point 1,890°C; boiling point 2,482°C; specific gravity 7.18; valence 2, 3, 6.
See Periodic Table
Word History and Origins
Origin of chromium1
Example Sentences
Eventually she is subsumed into this alien universe, a creature of nature who allows birds to roost on her chromium shoulder.
The test results also found high levels of chromium — which, in some chemical configurations, is a carcinogen — on one campus.
Most notably, chromium 6 is used as a durable, anti-corrosive coating — known as chrome — for a variety of automotive and aviation parts, as well as a protective coating to lumber products.
At the Santa Monica Pier and Dockweiler Beach, both of which are south of the burn scar, levels of both lead and chromium were roughly triple California’s safety threshold for marine life.
In 2021, for example, the state legislature adopted rules allowing for wood coated with toxic metals like chromium and arsenic to be taken to nonhazardous waste facilities.
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