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.

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PCB British  

abbreviation

1. polychlorinated biphenyl

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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.

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Example Sentences

See Examples For:

PCB

The PCB chairman Mohsin Naqvi also serves as Pakistan's interior minister.

From BBC ● Aug. 28, 2026

Wales was not Monsanto's first choice when it came to PCB dumping.

From BBC ● Aug. 10, 2026

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

Use the Hoods as illustrated to prevent accidental mismatch between the edge connectors on the PCB and the cable connectors.

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

Related Words

• microchip
• motherboard