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]