polychlorinated biphenyl

[ pol-ee-klawr-uh-ney-tid bahy-fen-l, ‐feen-l, -klohr- ]
/ ˌpɒl iˈklɔr əˌneɪ tɪd baɪˈfɛn l, ‐ˈfin l, -ˈkloʊr- /

noun Chemistry.

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. 2020

British Dictionary definitions for polychlorinated biphenyl

polychlorinated biphenyl
/ (ˌpɒlɪˈklɔːrɪˌneɪtɪd) /

noun

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
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

Medical definitions for polychlorinated biphenyl

polychlorinated biphenyl
[ pŏl′ē-klôrə-nā′tĭd ]

n.

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

Scientific definitions for polychlorinated biphenyl

polychlorinated biphenyl
[ pŏl′ē-klôrə-nā′tĭd ]

See PCB.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.