Source : Webster's Revised Unabridged Dictionary (1913)

Mummification \Mum`mi*fi*ca"tion\, n. [See {Mummify}.]
   The act of making a mummy.

Source : WordNet®

mummification
     n 1: a condition resembling that of a mummy; "bureaucratic
          mummification in red tape"
     2: (pathology) gangrene that develops in the presence of
        arterial obstruction and is characterized by dryness of
        the dead tissue and a dark brown color [syn: {dry gangrene},
         {cold gangrene}, {mumification necrosis}]
     3: embalmment and drying a dead body and wrapping it as a mummy