from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To separate (an ore) into scoria and a precious metal.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To reduce an ore to scoria.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To reduce to scoria or slag; specifically, in assaying, to fuse so as to separate the gangue and earthy material, with borax, lead, soda, etc., thus leaving the gold and silver in a lead button; hence, to separate from, or by means of, a slag.
from The Century Dictionary and Cyclopedia
- To reduce to scoria, slag, or dross.
Sorry, no etymologies found.