\Met"al*lur`gy\, n. [F. m['e]tallurgie, fr. L.
metallum metal, Gr. ? a mine + the root of ? work. See
{Metal}, and {Work}.]
The art of working metals, comprehending the whole process of
separating them from other matters in the ore, smelting,
refining, and parting them; sometimes, in a narrower sense,
only the process of extracting metals from their ores.