n. An aromatic hydrocarbon consisting of a benzene with two methyl substituents
the GNU version of the Collaborative International Dictionary of English
n. A hydrocarbon (C6H4(CH3)2) of the aromatic series obtained as a colorless liquid by the distillation of camphor with zinc chloride. It is one of the three metamers of xylene. Cf. metamer, and xylene.
The Century Dictionary and Cyclopedia
n. An oily hydrocarbon of the benzene series, C6H4(CH3)2; paradimethylbenzene. It is found in tar-oil and Galician petroleum, and is also made synthetically. It boils at 138° C. It can be solidified in a freezing mixture, and then melts at 15° C.
Word Usage
"Also hampered by the quake are producers of paraxylene, which is used in plastic beverage bottles, with 24 percent of Japan's capacity offline, Eramo said."