Bil″ious (bĭl″yŭs), a. [L. biliosus, fr. bilis bile.] 1. Of or pertaining to the bile.
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.
3. Choleric; passionate; ill tempered. “A bilious old nabob.” Macaulay.
Bilious temperament. See Temperament.