bilePronunciation: /bʌɪl/Translate bile | into Italian Definition of bile noun [mass noun] 1a bitter greenish-brown alkaline fluid which aids digestion and is secreted by the liver and stored in the gall bladder. 2anger, bitterness, or irritability:his response was full of bile and hatredOrigin: mid 16th century: from French, from Latin bilisbile in other Oxford dictionaries Definition of bile in the US English dictionary