Source : Webster's Revised Unabridged Dictionary (1913)

Brutalization \Bru`tal*i*za"tion\, n.
   The act or process of making brutal; state of being
   brutalized.

Source : WordNet®

brutalization
     n 1: the condition of being treated in a cruel and savage manner
          [syn: {brutalisation}]
     2: the activity of treating someone savagely or vicisouly [syn:
         {brutalisation}]
     3: an act that makes people cruel or lacking normal human
        qualities [syn: {brutalisation}, {animalization}, {animalisation}]