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Synonyms

PCB

American  

abbreviation

  1. Chemistry. polychlorinated biphenyl: any of a family of highly toxic chemical compounds consisting of two benzene rings in which chlorine takes the place of two or more hydrogen atoms: known to cause skin diseases and suspected of causing birth defects and cancer.

  2. Electronics. printed circuit board.

PCB British  

abbreviation

  1. polychlorinated biphenyl

"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
PCB Scientific  
/ pē′sē-bē′ /

  1. Short for polychlorinated biphenyl. Any of a family of very stable industrial compounds used as lubricants, heat-transfer fluids, and plasticizers. The manufacture and use of PCBs has been restricted since the 1970s because they are very harmful to the environment, being especially deadly to fish and invertebrates, and stay in the food chain for many years.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As such, the Taiwanese PCB vendor plans to expand MLB production capacity and lease new plants in Taiwan to mitigate the supply-demand gap.

From The Wall Street Journal • Mar. 11, 2026

"Zimbabwe Cricket has accepted our invitation to participate in a T20I tri-series which will be played as per schedule," said a PCB release.

From Barron's • Oct. 18, 2025

Current PCB materials are practically unbeatable in terms of robustness, and they are the benchmark for current rules regarding electronic components, Kleeman notes.

From Science Magazine • Nov. 24, 2024

The ICC has not responded directly to the PCB statement but is in discussions with Pakistan and the other seven competing nations over a schedule.

From BBC • Nov. 11, 2024

To gain access to the future expansion PCB Housing, remove the Expansion Door from the top left side of the module.

From Radio Shack TRS-80 Expansion Interface: Operator's Manual Catalog Numbers: 26-1140, 26-1141, 26-1142 by Anonymous

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.