The Collaborative International Dictionary of English v.0.48:

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.
   [1913 Webster]

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

WordNet (r) 3.0 (2006):

incineration
    n 1: the act of burning something completely; reducing it to
         ashes

Moby Thesaurus II by Grady Ward, 1.0:

37 Moby Thesaurus words for "incineration":
   blazing, blistering, branding, burning, calcination, carbonization,
   cauterization, cautery, cineration, combustion, concremation,
   cracking, cremation, cupellation, deflagration,
   destructive distillation, distillation, distilling, flaming,
   funeral pile, oxidation, oxidization, parching, pyre, pyrolysis,
   reduction to ashes, refining, scorching, scorification, searing,
   self-immolation, singeing, smelting, suttee, the stake,
   thermogenesis, vesication