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English definition of “iron”

iron

noun [U] (METAL)    /aɪən/ US  /aɪrn/
B1 (symbol Fe) a chemical element that is a common greyish-coloured metal. It is strong, used in making steel, and exists in very small amounts in blood: Iron rusts easily. Liver is a particularly rich source of dietary iron. iron ore an iron deficiencyChemical elementsMetals and metalworkingChemical elements
(Definition of iron noun (METAL) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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