Source : Webster's Revised Unabridged Dictionary (1913)

Reorganization \Re*or`gan*i*za"tion\ (-gan-?-z?"sh?n), n.
   The act of reorganizing; a reorganized existence; as,
   reorganization of the troops.

Source : WordNet®

reorganization
     n 1: the act of imposing a new organization; organizing
          differently (often involving extensive and drastic
          changes); "a committee was appointed to oversee the
          reorganization of the curriculum"; "top officials were
          forced out in the cabinet shakeup" [syn: {reorganisation},
           {shake-up}, {shakeup}]
     2: an extensive alteration of the structure of a corporation or
        government; "after the takeover there was a thorough
        reorganization"; "the reorganization was prescribed by
        federal bankruptcy laws"