polychlorinated biphenyl

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polybrominated biphenyl (PBB) any of various brominated derivatives of biphenyl; uses and toxic hazards are similar to those of polychlorinated biphenyls. They typically are deposited in body fat stores and are rarely mobilized except through lactation.
polychlorinated biphenyl (PCB) any of various chlorinated derivatives of biphenyl, toxic and carcinogenic nonbiodegradable compounds used as heat-transfer agents and electrical insulators; they are readily absorbed from the gastrointestinal tract, and those with a lower percentage of chlorine are associated with a higher toxicity but are more readily excreted.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pol·y·chlo·rin·at·ed bi·phen·yl (PCB),

biphenyl in which some or all of the hydrogen atoms attached to ring carbons are replaced by chlorine atoms; a [probable] human carcinogen and teratogen.
Farlex Partner Medical Dictionary © Farlex 2012

polychlorinated biphenyl

The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

pol·y·chlo·rin·at·ed bi·phe·nyl

(polē-klōri-nā-tĕd bī-fenil)
Agent in which some or all of the hydrogen atoms attached to ring carbons are replaced by chlorine atoms; possible human carcinogen and teratogen.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

polychlorinated biphenyl

PCB. Any one of a family of industrial pollutants known to be capable of inducing cancer.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive ?
The individual congeners included six indicator congeners (PCB-28, 52, 101, 118, 138, 153, and 180), ten dioxin-like PCB (PCB-77, 81, 105, 114, 123, 126, 156, 167, 169, and 189) and three lightly chlorinated biphenyls (PCB-11, 15, and 19), respectively.
It is shown that lightly chlorinated biphenyls were the main PCB species, and PCB-11, 77, 28, and 15 were the most abundant congeners produced during the dye manufacturing processes.
Only a few of the 209 chlorinated biphenyls were detected in four composite samples, each consisting of carp, rock bass, white crappies, and bluegills.
The mixture of Aroclor 1016 and Aroclor 1260 contained a wide range of chlorinated biphenyls and was used to validate the analytical method.
Chemicals such as the chlorinated biphenyls have been banned, but are still detected almost everywhere we look in the environment.
The large family of chemical compounds known as poly- chlorinated biphenyls (PCBs) has a reputation for toxicity.