The Collaborative International Dictionary of English v.0.48:

Fluidize \Flu"id*ize\, v. t. [imp. & p. p. Fluidized; p. pr. &
   vb. n. Fluidizing.]
   To render fluid.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

53 Moby Thesaurus words for "fluidize":
   aerate, aerify, atomize, carbonate, chlorinate, colliquate, cut,
   decoagulate, decoct, deliquesce, dissolve, distill, emit, etherify,
   etherize, evaporate, exhale, fluidify, flux, fractionate, fume,
   fumigate, fuse, gasify, give off, hold in solution, hydrogenate,
   infuse, leach, liquefy, liquesce, liquidize, lixiviate, melt,
   melt down, oxygenate, percolate, perfume, reek, run, send out,
   smoke, solubilize, solve, spray, steam, sublimate, sublime, thaw,
   thin, unclot, vaporize, volatilize