pimple copper
noun Metallurgy.
a form of copper matte about 80 percent pure, somewhat less refined than blister copper.
Also called
pimple metal.
Origin of pimple copper
First recorded in 1865–70
Words nearby pimple copper
pimp,
pimp up,
pimpernel,
pimping,
pimple,
pimple copper,
pimply,
pimpmobile,
pin,
pin back one's ears,
pin boy