: 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

Word History


International Scientific Vocabulary ter- + phenyl

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Dictionary Entries Near terphenyl

Cite this Entry

“Terphenyl.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/terphenyl. Accessed 11 Dec. 2023.

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