Source : Webster's Revised Unabridged Dictionary (1913)

Raptor \Rap"tor\ (r[a^]p"t[~e]r), n. [L. raptor, from rapere to
   ravish. See {Rapid}.]
   A ravisher; a plunderer. [Obs.]

Source : WordNet®

raptor
     n : any of numerous carnivorous birds that hunt and kill other
         animals [syn: {bird of prey}, {raptorial bird}]