- Thiophthene
- Thiophthene Thi*oph"thene, n. [Abbreviated from thionaphthene.] (Chem.) A double thiophene nucleus, {C6H4S2}, analogous to thionaphthene, and the base of a large series of compounds. [Written also {thiophtene}.] [1913 Webster]
The Collaborative International Dictionary of English. 2000.