pulverization
     n 1: a solid substance in the form of tiny loose particles; a
          solid that has been pulverized [syn: {powder}, {pulverisation}]
     2: the act of grinding to a powder or dust [syn: {grind}, {mill},
         {pulverisation}]
     3: annihilation by pulverizing something [syn: {pulverisation}]
Source: WordNet® 2.0