glycerylPronunciation: /ˈglɪs(ə)rʌɪl, -rɪl/Definition of glyceryl noun [as modifier] Chemistry of or denoting a radical derived from glycerol by replacement of one or more hydrogen atoms:glyceryl trinitrateOrigin: mid 19th century: from glycerine + -ylglyceryl in other Oxford dictionaries Definition of glyceryl in the US English dictionary