Source : Webster's Revised Unabridged Dictionary (1913)

Retaliation \Re*tal`i*a"tion\, n.
   The act of retaliating, or of returning like for like;
   retribution; now, specifically, the return of evil for evil;
   e.g., an eye for an eye, a tooth for a tooth.

         God . . . takes what is done to others as done to
         himself, and by promise obloges himself to full
         retaliation.                             --Calamy.

   Syn: Requital; reprisal; retribution; punishment.

Source : WordNet®

retaliation
     n : action taken in return for an injury or offense [syn: {revenge}]