The Collaborative International Dictionary of English v.0.48:

Pickle \Pic"kle\, v. t. [imp. & p. p. Pickled; p. pr. & vb. n.
   Pickling.]
   1. To preserve or season in pickle; to treat with some kind
      of pickle; as, to pickle herrings or cucumbers.
      [1913 Webster]

   2. To give an antique appearance to; -- said of copies or
      imitations of paintings by the old masters.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pickled \Pic"kled\, a.
   Preserved in a pickle.
   [1913 Webster]

WordNet (r) 3.0 (2006):

pickled
    adj 1: (used of foods) preserved in a pickling liquid