from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A two-ringed aromatic heterocycle consisting of a benzene ring fused to one of thiophene; any derivative of this compound
from the GNU version of the Collaborative International Dictionary of English
- n. A double benzene and thiophene nucleus, C8H6S, analogous to naphthalene, and like it the base of a large series of derivatives.
from The Century Dictionary and Cyclopedia
- n. A colorless compound, , prepared from 2-amino-l-chlorostyrolene. It crystallizes in plates, melts at 30–31° C, and is volatile with steam.
From thiophene and naphthalene. (Wiktionary)