The Collaborative International Dictionary of English v.0.48:

Victim \Vic"tim\, n. [L. victima: cf. F. victime.]
   1. A living being sacrificed to some deity, or in the
      performance of a religious rite; a creature immolated, or
      made an offering of.
      [1913 Webster]

            Led like a victim, to my death I'll go. --Dryden.
      [1913 Webster]

   2. A person or thing destroyed or sacrificed in the pursuit
      of an object, or in gratification of a passion; as, a
      victim to jealousy, lust, or ambition.
      [1913 Webster]

   3. A person or living creature destroyed by, or suffering
      grievous injury from, another, from fortune or from
      accident; as, the victim of a defaulter; the victim of a
      railroad accident.
      [1913 Webster]

   4. Hence, one who is duped, or cheated; a dupe; a gull.
      [Colloq.]
      [1913 Webster]

WordNet (r) 3.0 (2006):

victim
    n 1: an unfortunate person who suffers from some adverse
         circumstance
    2: a person who is tricked or swindled [syn: victim, dupe]