Thionaphthene

• (n.) A double benzene and thiophene nucleus, C8H6S, analogous to naphthalene, and like it the base of a large series of derivatives.
Found on http://thinkexist.com/dictionary/meaning/thionaphthene/

Thionaphthene

Thi`o·naph'thene noun [ Thio phene + naphth al ene .] (Chemistry) A double benzene and thiophene nucleus, C 8 H 6 S, analogous to naphthalene, and like it the base of a large series of derivatives. [ Written also thionaphtene .]
Found on http://www.encyclo.co.uk/webster/T/45
No exact match found