The Collaborative International Dictionary of English v.0.48:

Reversible \Re*vers"i*ble\, a. [Cf. F. r['e]versible revertible,
   reversionary.]
   1. Capable of being reversed; as, a chair or seat having a
      reversible back; a reversible judgment or sentence.
      [1913 Webster]

   2. Hence, having a pattern or finished surface on both sides,
      so that either may be used; -- said of fabrics.
      [1913 Webster]

   Reversible lock, a lock that may be applied to a door
      opening in either direction, or hinged to either jamb.

   Reversible process. See under Process.
      [1913 Webster]