The Collaborative International Dictionary of English v.0.48:

Bile \Bile\, n. [L. bilis: cf. F. bile.]
   1. (Physiol.) A yellow, or greenish, viscid fluid, usually
      alkaline in reaction, secreted by the liver. It passes
      into the intestines, where it aids in the digestive
      process. Its characteristic constituents are the bile
      salts, and coloring matters.
      [1913 Webster]

   2. Bitterness of feeling; choler; anger; ill humor; as, to
      stir one's bile. --Prescott.
      [1913 Webster]

   Note: The ancients considered the bile to be the "humor"
         which caused irascibility.
         [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bile \Bile\, n. [OE. byle, bule, bele, AS. b?le, b?l; skin to D.
   buil, G. beule, and Goth. ufbauljan to puff up. Cf. Boil a
   tumor, Bulge.]
   A boil. [Obs. or Archaic]
   [1913 Webster]

WordNet (r) 3.0 (2006):

bile
    n 1: a digestive juice secreted by the liver and stored in the
         gallbladder; aids in the digestion of fats [syn: bile,
         gall]

Moby Thesaurus II by Grady Ward, 1.0:

62 Moby Thesaurus words for "bile":
   absorption, acerbity, acid, acidity, acidulousness, acrimony,
   anger, animosity, asperity, assimilation, autacoid, bad humor,
   bad temper, biliousness, bitter resentment, bitterness,
   bitterness of spirit, causticity, chalone, choler, corrosiveness,
   digestion, digestive secretion, digestive system, discontent,
   endocrine, gall, gastric juice, gastrointestinal tract,
   gnashing of teeth, hard feelings, heartburning, hormone, ill humor,
   ill nature, ill temper, ingestion, intestinal juice, liver, mucus,
   pancreas, pancreatic digestion, pancreatic juice, predigestion,
   prostatic fluid, rancor, rankling, rheum, saliva,
   salivary digestion, salivary glands, salivary secretion,
   secondary digestion, semen, slow burn, soreness, sourness, sperm,
   spleen, tears, thyroxin, virulence