The Collaborative International Dictionary of English v.0.48:

Bilious \Bil"ious\ (b[i^]l"y[u^]s), a. [L. biliosus, fr. bilis
   bile.]
   1. Of or pertaining to the bile.
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   2. Disordered in respect to the bile; troubled with an excess
      of bile; as, a bilious patient; dependent on, or
      characterized by, an excess of bile; as, bilious symptoms.
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   3. Choleric; passionate; ill tempered. "A bilious old nabob."
      --Macaulay.
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   Bilious temperament. See Temperament.
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