Term: blister copper: an impure form of copper having a black blistered surface
Broader: copper: a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor | Unrelated: suggester: someone who advances a suggestion or proposal
Broader: copper: a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor | Unrelated: genus episcia: genus of tropical American herbs having soft hairy foliage