DictionarybilePronunciation: (bīl), [key] —n. 1. Physiol.a bitter, alkaline, yellow or greenish liquid, secreted by the liver, that aids in absorption and digestion, esp. of fats. 2. ill temper; peevishness. 3. Old Physiol.either of two humors associated with anger and gloominess. Cf. black bile, yellow bile. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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