acyloin
/əˈsʌɪləʊɪn/Chemistry
noun
Any of a class of organic compounds containing a carbonyl group with a hydroxyl group attached to the adjacent carbon atom; an alpha-hydroxy ketone.
Origin
Early 20th century. From French acyloïne from acyle + -oïne (in benzoïne, the molecule of which contains two phenyl groups linked by the acyloin structure).