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biphenyl

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
biphenyl /bi·phen·yl/ (-fen´il) diphenyl.
polychlorinated biphenyl  (PCB) any of a group of chlorinated derivatives of biphenyl, used as heat-transfer agents and electrical insulators; they are toxic, carcinogenic, and non-biodegradable.
bi·phen·yl (b-fnl, -fnl)
n.
A colorless crystalline aromatic hydrocarbon used in fungicides and in organic synthesis. Also called diphenyl.
biphenyl
polybrominated and polychlorinated biphenyls are widely used industrial chemicals, as flame retardants, heat transfer agents and electrical insulators.
biphenyl poisoning
these chemicals are not known to produce illness in the average environment, but they accumulate in fat and have a very slow rate of excretion and biodegradability. Experimental poisoning causes diarrhea, poor weight gain, growth retardation and abortion.


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Abnormally high polychlorinated biphenyl levels in striped dolphins (Stenella coeruleoalba) affected by the 1990-1992 Mediterranean epizootic.
The risk of infection from polychlorinated biphenyl exposure in the ... by Jepson, Paul D. / Environmental Health Perspectives
Individual congeners are produced by reacting the basic biphenyl structural unit with chlorine, replacing anywhere from 1 to 10 of the original hydrogens with chlorine yielding up to 209 possible arrangements (congeners).
Standard Reference Materials (SRMs) for the calibration and ... by Wise, Stephen A. / Journal of Research of the National Institute of Standards and Technology
If the "pro-lifers" are so concerned about the health of fetuses, why aren't they out in the streets protesting and demanding that the Bush Administration do something about heavy metal and polychlorinated biphenyl (PCB) pollution in our lakes, rivers and oceans?
A mercurial debate. (Letters From Our Readers) by E
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