The Collaborative International Dictionary of English v.0.48:

Alcoholic \Al`co*hol"ic\ ([a^]l`k[-o]*h[o^]l"[i^]k), a. [Cf. F.
   alcolique.]
   Of or pertaining to alcohol, or partaking of its qualities;
   derived from, or caused by, alcohol; containing alcohol; as,
   alcoholic mixtures; alcoholic gastritis; alcoholic odor.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Alcoholic \Al`co*hol"ic\, n.
   1. A person given to the use of alcoholic liquors.
      [1913 Webster]

   2. pl. Alcoholic liquors.
      [1913 Webster]

WordNet (r) 3.0 (2006):

alcoholic
    adj 1: characteristic of or containing alcohol; "alcoholic
           drinks" [ant: nonalcoholic]
    2: addicted to alcohol; "alcoholic expatriates in Paris"- Carl
       Van Doren [syn: alcoholic, alcohol-dependent]
    n 1: a person who drinks alcohol to excess habitually [syn:
         alcoholic, alky, dipsomaniac, boozer, lush,
         soaker, souse]

Moby Thesaurus II by Grady Ward, 1.0:

124 Moby Thesaurus words for "alcoholic":
   LSD user, acidhead, addict, alcoholic addict,
   alternating personality, antisocial personality, ardent, bacchanal,
   bacchanalian, barfly, bibber, big drunk, boozer, carouser,
   chain smoker, chronic alcoholic, chronic drunk, cocaine sniffer,
   cokie, cubehead, devotee of Bacchus, dipsomaniac,
   disordered personality, disturbed personality, dope fiend, doper,
   double personality, drinker, drug abuser, drug addict, drug user,
   drunk, drunkard, dual personality,
   emotionally unstable personality, escapist, fiend, freak,
   glue sniffer, guzzler, habitual, hard, hard drinker, head,
   heavy drinker, heavy smoker, hophead, hostile personality, hype,
   hypochondriac, hypochondriast, idiot, imaginary invalid, imbiber,
   immature personality, inadequate personality, inebriate,
   inebriating, inferior personality, intoxicating, junkie, lovepot,
   lush, malade imaginaire, maladjusted personality, marijuana smoker,
   mentally defective personality, methhead, moral insanity,
   multiple personality, narcotics addict, neuropath, neurotic,
   neurotic personality, oenophilist, paranoid personality,
   pathological drinker, perverse personality, pillhead,
   pot companion, pothead, problem drinker, psychoneurotic,
   psychopath, psychopathic personality, psychotic,
   psychotic personality, reveler, rummy, schizoid,
   schizoid personality, seclusive personality, serious drinker,
   sexual psychopath, shikker, shut-in personality, snowbird, soak,
   soaker, social drinker, sociopath, sot, speed freak, spirituous,
   split personality, stew, strong, swigger, swiller, thirsty soul,
   tippler, toper, tosspot, tripper, user, valetudinarian,
   valetudinary, vinous, wassailer, weak personality, winebibber,
   wino, winy, with a kick