The Collaborative International Dictionary of English v.0.48:

liberated \liberated\ adj. (Chem.)
   1. released from chemical combination, or as a consequence of
      chemical reaction; -- of a gas.
      [WordNet 1.5]

   2. freed from bondage; -- of people.

   Syn: emancipated, freed.
        [WordNet 1.5]

   3. free from traditional social restraints; as, a liberated
      lifestyle.

   Syn: emancipated.
        [WordNet 1.5]

   4. stolen. [jocose]
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Liberate \Lib"er*ate\ (-[=a]t), v. t. [imp. & p. p. Liberated
   (-[=a]`t[e^]d); p. pr. & vb. n. Liberating
   (-[=a]`t[i^]ng).] [L. liberatus, p. p. of liberare to free,
   fr. liber free. See Liberal, a., and cf. Deliver.]
   To release from restraint or bondage; to set at liberty; to
   free; to manumit; to disengage; as, to liberate a slave or
   prisoner; to liberate the mind from prejudice; to liberate
   gases.
   [1913 Webster]

   Syn: To deliver; free; release. See Deliver.
        [1913 Webster]

WordNet (r) 3.0 (2006):

liberated
    adj 1: (of a gas e.g.) released from chemical combination
    2: free from traditional social restraints; "an emancipated
       young woman pursuing her career"; "a liberated lifestyle"
       [syn: emancipated, liberated]