A chemical element (symbol Cr) with an atomic number of 24: a steely-grey, lustrous, hard and brittle transition metal.

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plural of chromium

To plate something with chromium.

(inorganic chemistry) A black, semiconducting material, CrO₂, having strong magnetic properties; used in recording tapes.

(inorganic chemistry) The chromium oxide, Cr₂O₃, manufactured from chromite and sometimes used as a pigment.

To plate a metal with a layer of chromium

plated with a layer of chromium

(physics) A minor stable isotope of chromium, ⁵³₂₄Cr, having 24 protons and 29 neutrons; it amounts to about 9% of the element in nature

(physics) The major stable isotope of chromium, ⁵²₂₄Cr, having 24 protons and 28 neutrons; it amounts to about 84% of the element in nature