Source : Webster's Revised Unabridged Dictionary (1913)

Decentralization \De*cen`tral*i*za"tion\, n.
   The action of decentralizing, or the state of being
   decentralized. ``The decentralization of France.'' --J. P.
   Peters.

Source : WordNet®

decentralization
     n 1: the social process in which population and industry moves
          from urban centers to outlying districts [syn: {decentalisation}]
     2: the spread of power away from the center to local branches
        or governments [syn: {decentralisation}] [ant: {centralization}]