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

One of the group's founders pointed to the fact the documentary had to rely on a large-scale study from the US to assess and compare PCB levels in the local residents it had tested.

From BBC ● Sep. 24, 2026

The PCB will not comment further at this time.

From BBC ● Sep. 7, 2026

"The current cycle is still characterised by tight supply in high-end PCB manufacturing," she said.

From Barron's ● Apr. 21, 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

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

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Related Words

• microchip
• motherboard

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