biphenyl

biphenyl

[bahy-fen-l, -feen-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:
1920–25; bi-1 + phenyl

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World English Dictionary
biphenyl (baɪˈfɛnəl, -ˈfiː-)
 
n
1.  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
2.  any substituted derivative of biphenyl

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American Heritage
Medical Dictionary

biphenyl bi·phen·yl (bī-fěn'əl, -fē'nəl)
n.
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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Encyclopedia Britannica
Encyclopedia

biphenyl

an aromatic hydrocarbon, used alone or with diphenyl ether as a heat-transfer fluid; chemical formula, C6H5C6H5. It may be isolated from coal tar; in the United States, it is manufactured on a large scale by the thermal dehydrogenation of benzene.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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