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pimple copper

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noun Metallurgy.
a form of copper matte about 80 percent pure, somewhat less refined than blister copper.
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Also called pimple metal.

Origin of pimple copper

First recorded in 1865–70

Words nearby pimple copper

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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