The Collaborative International Dictionary of English v.0.48:

Pulverization \Pul`ver*i*za"tion\, n. [Cf. F. pulv['e]risation.]
   The action of reducing to dust or powder.
   [1913 Webster]

WordNet (r) 3.0 (2006):

pulverization
    n 1: a solid substance in the form of tiny loose particles; a
         solid that has been pulverized [syn: powder,
         pulverization, pulverisation]
    2: the act of grinding to a powder or dust [syn: grind,
       mill, pulverization, pulverisation]
    3: annihilation by pulverizing something [syn: pulverization,
       pulverisation]