Definition of chromium in English:



  • The chemical element of atomic number 24, a hard white metal used in stainless steel and other alloys.

    • ‘The metal can be, for example, titanium, tantalum, chromium, aluminium or tungsten.’
    • ‘The most common of the special elements added to cast iron are nickel, chromium, copper and molybdenum.’
    • ‘However, nickel alloys containing chromium, titanium and aluminum will form a thin oxide film.’
    • ‘Metal oxides such as chromium, iron, copper, or manganese, are used to colour glass, and the shades range from a light green to deep blue to topaz yellow.’
    • ‘Common alloys used for this purpose include molybdenum and chromium in addition to manganese and carbon.’


Early 19th century: from chrome + -ium.