The Collaborative International Dictionary of English v.0.48:

Intoxication \In*tox`i*ca"tion\, n.
   1. (Med.) A poisoning, as by a alcoholic or a narcotic
      substance.
      [1913 Webster]

   2. The state of being intoxicated or drunk; inebriation;
      ebriety; drunkenness; the act of intoxicating or making
      drunk.
      [1913 Webster]

   2. A high excitement of mind; an elation which rises to
      enthusiasm, frenzy, or madness.
      [1913 Webster]

            That secret intoxication of pleasure. --Spectator.

   Syn: Drunkenness; inebriation; inebriety; ebriety;
        infatuation; delirium. See Drunkenness.
        [1913 Webster]

WordNet (r) 3.0 (2006):

intoxication
    n 1: the physiological state produced by a poison or other toxic
         substance [syn: poisoning, toxic condition,
         intoxication]
    2: a temporary state resulting from excessive consumption of
       alcohol [syn: drunkenness, inebriation, inebriety,
       intoxication, tipsiness, insobriety] [ant: soberness,
       sobriety]
    3: excitement and elation beyond the bounds of sobriety; "the
       intoxication of wealth and power"

Moby Thesaurus II by Grady Ward, 1.0:

67 Moby Thesaurus words for "intoxication":
   abandon, autointoxication, beatification, beatitude, bewitchment,
   blessedness, bliss, blissfulness, blood poisoning, cheer,
   cheerfulness, cloud nine, craze, delectation, delight, delirium,
   ecstasy, ecstatics, elation, enchantment, ergotism, exaltation,
   exhilaration, exuberance, felicity, fire and fury, food poisoning,
   frenzy, furor, furore, fury, gaiety, gladness, glee, happiness,
   heaven, high spirits, hysteria, joy, joyance, joyfulness, madness,
   milk sickness, orgasm, orgy, overhappiness, overjoyfulness,
   paradise, passion, poisoning, ptomaine poisoning, pyemia, rage,
   rapture, ravishment, sepsis, septic poisoning, septicemia,
   septicopyemia, seventh heaven, sunshine, tearing passion,
   towering rage, toxemia, transport, unalloyed happiness,
   venenation