Also found in: Thesaurus, Medical, Wikipedia.
[French butyrine, from Latin būtȳrum, butter; see butter.]
(Elements & Compounds) a colourless liquid ester or oil found in butter. It is formed from butyric acid and glycerine
[C20: from butyr(ic acid + glycer)in(e)]
bu•tyr•in(ˈbyu tər ɪn)
a colorless liquid ester in butter, formed from glycerin and butyric acid.