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[bahy-fen-l, -feen-l] /baɪˈfɛn l, -ˈfin l/
noun, Chemistry.
a water-insoluble, pleasant-smelling, colorless powder or white scales, C 12 H 10 , composed of two phenyl groups, from which benzidine dyes are derived: used chiefly as a heat-transfer agent and in organic synthesis.
Also called diphenyl, phenylbenzene.
Origin of biphenyl
First recorded in 1920-25; bi-1 + phenyl Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for biphenyl


/baɪˈfɛnəl; -ˈfiː-/
a white or colourless crystalline solid used as a heat-transfer agent, as a fungicide, as an antifungal food preservative (E230) on the skins of citrus fruit, and in the manufacture of dyes, etc. Formula: C6H5C6H5
any substituted derivative of biphenyl
Also called diphenyl
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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biphenyl in Medicine

biphenyl bi·phen·yl (bī-fěn'əl, -fē'nəl)
A colorless crystalline aromatic hydrocarbon used in fungicides and in organic synthesis. Also called diphenyl.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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