1. A bitter, alkaline, brownish-yellow or greenish-yellow fluid that is secreted by the liver, stored in the gallbladder, and discharged into the duodenum and aids in the emulsification, digestion, and absorption of fats. Also called gall1.
2. Bitterness of temper; ill humor; irascibility.
3. Either of two bodily humors, black bile or yellow bile, in ancient and medieval physiology.
[French, from Latin bīlis.]
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