Source : Webster's Revised Unabridged Dictionary (1913)

Lycanthrope \Ly"can*thrope\, n. [Gr. ?; ? a wolf + ? a man.]
   1. A human being fabled to have been changed into a wolf; a
      werewolf.

   2. One affected with lycanthropy.

Source : WordNet®

lycanthrope
     n : a monster able to change appearance from human to wolf [syn:
          {werewolf}, {wolfman}]