blister copper

blister copper

n.

An almost pure copper produced in an intermediate stage of copper refining.

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[From its blistered appearance.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

blister copper

n

(Metallurgy) an impure form of copper having a blister-like surface due to the release of gas during cooling

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

blis′ter cop`per

n.

a matte of impure copper with a blistered surface caused by the escape of gas during solidification.

[1860–65]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Thesaurus

Noun

1.

blister copper - an impure form of copper having a black blistered surface atomic number 29, copper, Cu - 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

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