The meaning of XYLYL is any of several isomeric monovalent radicals C8H9 derived from the three xylenes by removal of a hydrogen atom; especially : a radical of the formula (CH3)2C6H3.
Define xylyl. xylyl synonyms, xylyl pronunciation, xylyl translation, English dictionary definition of xylyl. n of, containing, or denoting the group of atoms 2C6H3-, derived from xylene Collins English Dictionary – Complete and Unabridged, 12th Edition