(n.) The reducing of anything to ashes by combustion; cinefaction.

blazing blistering branding burning calcination carbonization cauterization cautery combustion concremation cracking cremation cupellation deflagration destructive distillation distillation distilling flaming incineration oxidation oxidization parching pyrolysis refining scorching scorification searing self-immolation singeing smelting suttee the stake thermogenesis vesication