colliquefaction

from The Collaborative International Dictionary of English v.0.48

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.
   [1913 Webster]

         The incorporation of metals by simple colliquefaction.
                                                  --Bacon.
   [1913 Webster]