Source : Webster's Revised Unabridged Dictionary (1913)

Solidification \So*lid`i*fi*ca"tion\, n. [Cf. F.
   solidification.]
   Act of solidifying, or state of being solidified.

Source : WordNet®

solidification
     n : the process of becoming hard or solid by cooling or drying
         or crystallization; "the hardening of concrete"; "he
         tested the set of the glue" [syn: {hardening}, {solidifying},
          {set}, {curing}]