Source : Webster's Revised Unabridged Dictionary (1913)

Carcajou \Car"ca*jou\ (k[aum]r"k[.a]*j[=oo]), n. [Probably a
   Canadian French corruption of an Indian name of the
   wolverene.] (Zo["o]l.)
   The wolverene; -- also applied, but erroneously, to the
   Canada lynx, and sometimes to the American badger. See
   {Wolverene}.

Source : WordNet®

carcajou
     n : stocky shaggy-coated North American carnivorous mammal [syn:
          {wolverine}, {skunk bear}, {Gulo luscus}]