Source : Webster's Revised Unabridged Dictionary (1913)

Counteraction \Coun`ter*ac"tion\ (koun`t?r-?k"sh?n), n.
   Action in opposition; hindrance resistance.

         [They] do not . . . overcome the counteraction of a
         false principle or of stubborn partiality. --Johnson.

Source : WordNet®

counteraction
     n : action intended to nullify the effects of some previous
         action [syn: {neutralization}, {neutralisation}]