The Collaborative International Dictionary of English v.0.48:

chow-chow \chow-chow\ (chou"chou`), n.
   1. chopped pickles in mustard sauce.

   Syn: chowchow.
        [WordNet 1.5]

   2. a Chinese preserve of mixed fruits and ginger.

   Syn: chowchow.
        [WordNet 1.5]

   3. a breed of thick-coated medium-sized dogs with fluffy
      curled tails and distinctive blue-black tongues; believed
      to have originated in north China.

   Syn: chow, chow chow.
        [WordNet 1.5]

   Chowchow chop, the last lighter containing the small sundry
      packages sent off to fill up a ship. --S. W. Williams.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Chowchow \Chow"chow`\ (chou"chou`), a. [Chin.]
   Consisting of several kinds mingled together; mixed; as,
   chowchow sweetmeats (preserved fruits put together).
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Chowchow \Chow"chow`\ (chou"chou`), n. (Com.)
   A kind of mixed pickles.
   [1913 Webster]

WordNet (r) 3.0 (2006):

chowchow
    n 1: chopped pickles in mustard sauce
    2: a Chinese preserve of mixed fruits and ginger