Bile

Webster's Dictionary

(1): (n.) Bitterness of feeling; choler; anger; ill humor; as, to stir one's bile.

(2): (n.) A boil.

(3): (n.) 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.

The Nuttall Encyclopedia

A fluid secreted from the blood by the liver to aid in digestion, the secretion of which is most active after food.