Source : Webster's Revised Unabridged Dictionary (1913)

Desiccation \Des`ic*ca"tion\, n. [Cf. F. dessiccation.]
   The act of desiccating, or the state of being desiccated.

Source : WordNet®

desiccation
     n 1: dryness resulting from the removal of water [syn: {dehydration}]
     2: the process of extracting moisture [syn: {dehydration}, {drying
        up}, {evaporation}]