Source : Webster's Revised Unabridged Dictionary (1913)

Incineration \In*cin`er*a"tion\, n. [LL. incineratio: cf. F.
   incin['e]ration.]
   The act of incinerating, or the state of being incinerated;
   cremation.

         The phenix kind, Of whose incineration, There riseth a
         new creation.                            --Skelton.

Source : WordNet®

incineration
     n : the act of burning something completely; reducing it to
         ashes