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Definition of: xylene
(zī′lēn) noun Chem.
Any one of three isomeric colorless hydrocarbons, C6H4(CH3) 2, contained in coal tar and wood tar. A mixture of the three yields a colorless, inflammable liquid used as a solvent and in medicine as an antiseptic. Also xy′lol (-lōl, -lol). [<Gk. xylon wood + -ENE]
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