Source : Webster's Revised Unabridged Dictionary (1913)

Rehabilitation \Re`ha*bil`i*ta"tion\ (-t?"sh?n), n. [Cf. LL.
   rehabilitatio, F. R['e]habilitation.]
   The act of rehabilitating, or the state of being
   rehabilitated. --Bouvier. Walsh.

Source : WordNet®

rehabilitation
     n 1: the restoration of someone to a useful place in society
     2: the conversion of wasteland into land suitable for use of
        habitation or cultivation [syn: {reclamation}, {renewal}]
     3: vindication of a person's character and the re-establishment
        of that person's reputation
     4: the treatment of physical disabilities by massage and
        electrotherapy and exercises