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

"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

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 PCB has forwarded that email to the government of Pakistan for their advice and guidance."

From BBC • Nov. 11, 2024

Set the feet of the Video Display in the recesses in the Power Supply and PCB Housing Doors.

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

Related Words

• microchip
• motherboard