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BNC: 32850 COCA: 35186

dross

1 ENTRIES FOUND:
dross /ˈdrɑːs/ noun
dross
/ˈdrɑːs/
noun
Learner's definition of DROSS
[noncount]
technical : unwanted material that is removed from a mineral (such as gold) to make it better浮渣;渣滓
: something of low value or quality劣质品

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