xylylene

noun

xy·​lyl·​ene

ˈzīləˌlēn

plural -s

1

: any of several isomeric bivalent radicals C₈H₈ derived from the three xylenes by removal of one hydrogen atom from each of two carbon atoms

especially : any of the three radicals having the formula −CH₂C₆H₄CH₂−; phenylene-di-methylene

2

: a reactive hydrocarbon CH₂=C₆H₄=CH₂ that is formed by pyrolysis of para -xylene under low pressure followed by quick chilling in a solvent at −80° C and that polymerizes to an insoluble white mass at room temperature

called also para-xylylene, p-xylylene

Word History

Etymology

International Scientific Vocabulary xylyl + -ene

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