from The Century Dictionary.
- noun In organic chemistry, any one of the three isomeric bivalent radicals, (CH3)2C6H2⟨ [CH3;CH3 = 1,2; 1,3; or 1,4.] The term is homologous with phenylene and the derivatives of both radicals resemble each other in general properties.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) Any one of three metameric radicals, CH2.C6H4.CH2, derived respectively from the three xylenes. Often used adjectively.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry
Sorry, no etymologies found.
Liquid irritants soon came to the front -- xylyl bromide and xylylene dibromide -- a mixture used later under the name of T. stuff, bromo-acetone and brominated methyl ethyl ketone, later introduced under the name of B. stuff and Bn.stuff. "