Webster’s Revised Unabridged Dictionary · 1913
Colliquefaction
Col·liq′ue·fac′tion, n. [L. colliquefactus melted; col- + liquefacere; liquēre to be liquid + facere to make.] A melting together; the reduction of different bodies into one mass by fusion.
The incorporation of metals by simple colliquefaction. Bacon.