Source : Webster's Revised Unabridged Dictionary (1913)

Colliquefaction \Col*liq`ue*fac"tion\, n. [L. colliquefactus
   melted; col- + liquefacere; liqu[=e]re 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.