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polychlorinated biphenyl

[pol-ee-klawr-uh-ney-tid, -klohr-]
noun Chemistry.
  1. PCB.
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Origin of polychlorinated biphenyl

1960–65; poly- + chlorinated
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for polychlorinated biphenyl

polychlorinated biphenyl

noun
  1. any of a group of compounds in which chlorine atoms replace the hydrogen atoms in biphenyl: used in industry in electrical insulators and in the manufacture of plastics; a toxic pollutant that can become concentrated in animal tissueAbbreviation: PCB
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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

polychlorinated biphenyl in Medicine

polychlorinated biphenyl

(pŏl′ē-klôrə-nā′tĭd)
n.
  1. PCB
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

polychlorinated biphenyl in Science

polychlorinated biphenyl

[pŏl′ē-klôrə-nā′tĭd]
  1. See PCB.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.