Pronunciation: (zī'lēn), [key]
any of three oily, colorless, water-insoluble, flammable, toxic, isomeric liquids, C8H10, of the benzene series, obtained mostly from coal tar: used chiefly in the manufacture of dyes. Also,xy•lol(zī'lôl, -lol). Also called dimethylbenzene.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.