Thionaphthene
Related to Thionaphthene: Thianaphthene
Thi`o`naph´thene
n. | 1. | (Chem.) A double benzene and thiophene nucleus, C8H6S, analogous to naphthalene, and like it the base of a large series of derivatives. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.