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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 thionaphthene
 苯並□吩; 硫□

From: Webster's Revised Unabridged Dictionary (1913)

 Thi·o·naph·thene n.  Chem. A double benzene and thiophene nucleus, C8H6S, analogous to naphthalene, and like it the base of a large series of derivatives. [Written also thionaphtene.]