Source : Webster's Revised Unabridged Dictionary (1913)

Decentralize \De*cen"tral*ize\, v. t.
   To prevent from centralizing; to cause to withdraw from the
   center or place of concentration; to divide and distribute
   (what has been united or concentrated); -- esp. said of
   authority, or the administration of public affairs.

Source : WordNet®

decentralize
     v : make less central; "After the revolution, food distribution
         was decentralized" [syn: {deconcentrate}, {decentralise}]
         [ant: {centralize}, {centralize}, {centralize}]