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English definition of “melt sth down”

melt sth down

verb uk phrasal verb with melt   /melt/ us  
to heat a metal object until it turns to liquid, because you want to use the metal rather than the object: They melted down the gold rings and bracelets.Physical and chemical processesMetals and metalworkingChemical elements
(Definition of melt sth down from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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