pyrometallurgy: Meaning and Definition of

py•ro•met•al•lur•gy

Pronunciation: (pī"ru-met'l-ûr"jē), [key]
— n.
  1. the process or technique of refining ores with heat so as to accelerate chemical reactions or to melt the metallic or nonmetallic content.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.