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English definition of “alloy”

alloy

noun [C or U]     /ˈæl.ɔɪ/
a metal that is made by mixing two or more metals, or a metal and another substance: Brass is an alloy of copper and zinc. alloy wheelsMetals and metalworkingChemical elements
(Definition of alloy noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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