The Collaborative International Dictionary of English v.0.48:

Revulsion \Re*vul"sion\, n. [F. r['e]vulsion, L. revulsio, fr.
   revellere, revulsum, to pluck or pull away; pref. re- re- +
   vellere to pull. Cf. Convulse.]
   1. A strong pulling or drawing back; withdrawal. "Revulsions
      and pullbacks." --SSir T. Brovne.
      [1913 Webster]

   2. A sudden reaction; a sudden and complete change; --
      applied to the feelings.
      [1913 Webster]

            A sudden and violent revulsion of feeling, both in
            the Parliament and the country, followed.
                                                  --Macaulay.
      [1913 Webster]

   3. (Med.) The act of turning or diverting any disease from
      one part of the body to another. It resembles derivation,
      but is usually applied to a more active form of counter
      irritation.
      [1913 Webster]

WordNet (r) 3.0 (2006):

revulsion
    n 1: intense aversion [syn: repugnance, repulsion,
         revulsion, horror]

Moby Thesaurus II by Grady Ward, 1.0:

113 Moby Thesaurus words for "revulsion":
   abhorrence, abomination, about-face, action and reaction, answer,
   antipathy, automatic reaction, autonomic reaction, aversion,
   backing, backsliding, bloodless revolution, bouleversement,
   bounceback, breakdown, breakup, cataclysm, catastrophe,
   clean slate, clean sweep, computer revolution, convulsion,
   counterrevolution, debacle, detestation, disenchantment, disgust,
   echo, ectropion, eversion, execration, flip-flop, hate, hatred,
   horror, introversion, intussusception, invagination, inversion,
   lapse, loathing, odium, overthrow, overturn, palace revolution,
   predictable response, pronation, radical change, reaction,
   recidivation, recidivism, reclamation, reconversion, reflection,
   reflex, reflex action, refluence, reflux, regress, regression,
   rehabilitation, reinstatement, relapse, reply, repugnance,
   repulsion, respondence, response, restitution, restoration,
   resupination, retroaction, retrocession, retroflexion,
   retrogradation, retrogression, retroversion, return, returning,
   reverberation, reversal, reverse, reversing, reversion, reverting,
   revolt, revolution, revolutionary war, rise, slipping back, spasm,
   striking alteration, subversion, supination, sweeping change,
   tabula rasa, technological revolution, topsy-turviness,
   topsy-turvydom, total change, transilience, transposal,
   transposition, turn, turnabout, turning back, turning backwards,
   turning inside out, turning inward, turning over,
   unthinking response, upset, violent change