The Collaborative International Dictionary of English v.0.48:

Ravisher \Rav"ish*er\ (-[~e]r), n.
   One who ravishes (in any sense).
   [1913 Webster]

WordNet (r) 3.0 (2006):

ravisher
    n 1: someone who assaults others sexually [syn: violator,
         debaucher, ravisher]
    2: a very attractive or seductive looking woman [syn: smasher,
       stunner, knockout, beauty, ravisher, sweetheart,
       peach, lulu, looker, mantrap, dish]