The Collaborative International Dictionary of English. 2000.
C6H4S2 — 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
thiophtene — 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
