thiophene
noun
thio·phene ˈthī-ə-ˌfēn 
: a heterocyclic liquid C4H4S from coal tar that resembles benzene
Example Sentences
Recent Examples on the Web The organic molecules and volatiles, comparable to samples of sedimentary rock rich in organics on Earth, included thiophenes, methylthiophenes methanethiol and dimethylsulfide. 
Ashley Strickland, CNN, 6 Mar. 2020 Numerous organic compounds were discovered, including thiophene, 2- and 3-methylthiophenes, methanethiol, and dimethylsulfide. Jay Bennett, Popular Mechanics, 7 June 2018 Only a few of the organic molecules, sulfur-bearing carbon rings called thiophenes, were abundant enough to be detected directly, Eigenbrode says. Paul Voosen, Science | AAAS, 7 June 2018
Ashley Strickland, CNN, 6 Mar. 2020 Numerous organic compounds were discovered, including thiophene, 2- and 3-methylthiophenes, methanethiol, and dimethylsulfide. Jay Bennett, Popular Mechanics, 7 June 2018 Only a few of the organic molecules, sulfur-bearing carbon rings called thiophenes, were abundant enough to be detected directly, Eigenbrode says. Paul Voosen, Science | AAAS, 7 June 2018 Word History
Etymology
International Scientific Vocabulary thi- + phene benzene
First Known Use
1883, in the meaning defined above
Medical Definition
thiophene
noun
thio·phene ˈthī-ə-ˌfēn
variants also thiophen
-ˌfen
: a heterocyclic liquid C4H4S from coal tar that resembles benzene and is used chiefly in organic synthesis
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