Meaning of ALLOY in English

(METAL) [noun] [C] - a metal that is made by mixing two or more metals, or a metal and another substance, togetherSteel is an alloy of iron, carbon and other elements such as phosphorus and nickel.Brass is an alloy of copper and zinc.Standard features on the car include central locking, tinted glass, electric windows and alloy wheels.

Cambridge English vocab.      Кембриджский английский словарь.