The Collaborative International Dictionary of English v.0.48:

detox \detox\ n.
   1. the hospital ward or clinic in which patients are
      detoxified; -- often used attributively.

   Syn: detox ward. [WordNet 1.5]

   2. detoxification.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

detox \detox\ v. t.
   to detoxify. [informal]
   [PJC]

WordNet (r) 3.0 (2006):

detox
    n 1: the hospital ward or clinic in which patients are
         detoxified
    v 1: treat for alcohol or drug dependence; "He was detoxified in
         the clinic" [syn: detox, detoxify]