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smelter

 
 
/ˈsmeltər/ US   /-ṱɚ/ noun [C] PRODUCTION

Definition

a machine for taking metal out of rock by smelting it (= heating it to a very high temperature), or a factory that uses these machines: The company has three copper mines and a smelter in Arizona. The lead smelters had been losing money for years.
(Definition of smelter noun from the Cambridge Business English Dictionary © Cambridge University Press)

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