Source : Webster's Revised Unabridged Dictionary (1913)

Biter \Bit"er\, n.
   1. One who, or that which, bites; that which bites often, or
      is inclined to bite, as a dog or fish. ``Great barkers are
      no biters.'' --Camden.

   2. One who cheats; a sharper. [Colloq.] --Spectator.

Source : WordNet®

biter
     n : someone who bites