/ baɪl; NAmE / noun [ U ]
1.
the greenish brown liquid with a bitter unpleasant taste that is produced by the liver to help the body to deal with the fats we eat, and that can come into your mouth when you vomit with an empty stomach
2.
( formal ) anger or hatred :
The critic's review of the play was just a paragraph of bile.
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WORD ORIGIN
mid 16th cent.: from French , from Latin bilis .