Source : Webster's Revised Unabridged Dictionary (1913)

Griffon \Grif"fon\ (gr[i^]f"f[o^]n), n. [F.]
   One of a European breed of rough-coated dogs, somewhat taller
   than the setter and of a grizzly liver color. They are used
   in hunt game birds. The {Brussels griffon} is a very small,
   wiry-coated, short-nosed pet dog of Belgian origin.

Source : WordNet®

Brussels griffon
     n : breed of various very small compact wiry-coated dogs of
         Belgian origin having a short bearded muzzle [syn: {griffon},
          {Belgian griffon}]