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terphenyl

noun
ter·​phenyl | \¦tər+\

Definition of terphenyl 

: any of three isomeric crystalline hydrocarbons C6H5C6H4C6H5 that contain three benzene rings linked in ortho, meta, and para positions, that are obtained usually along with biphenyl from benzene, and that are used chiefly as industrial heat transfer media also : a mixture of two or all three of these hydrocarbons

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History and Etymology for terphenyl

International Scientific Vocabulary ter- + phenyl

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