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1. Of, relating to, or containing bile; biliary.
a. Characterized by an excess secretion of bile.
b. Relating to, characterized by, or experiencing gastric distress caused by a disorder of the liver or gallbladder.
c. Appearing as if affected by such a disorder; sickly.
3. Resembling bile, especially in color: a bilious green.
4. Having a peevish disposition; ill-humored.
in a bilious or bad manner