toluylene

from The Century Dictionary.

• noun A colorless compound, C₆H₅CH:CHC₆H₅, prepared by the action of lead oxid on toluene vapor. It crystallizes in large monoclinic plates, melts at 124° C, and boils at 306–307° C. Also called

from the GNU version of the Collaborative International Dictionary of English.

• noun Same as stilbene.
• noun Sometimes, but less properly, tolylene.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun chemistry stilbene
• noun chemistry, proscribed tolylene