blister copper: Meaning and Definition of

blis'ter cop"per

Pronunciation: [key]
— Metall. Metall.
  1. a matte of from 96 to 99 percent copper, having a blistered surface after smelting because of gases generated during solidification.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.