# PCB

CEFR C1 · Noun

Source: https://englishreference.com/word/pcb
Updated: 2026-05-10

## Definition

Stands for printed circuit board. A flat board inside electronic devices that connects different parts like chips and batteries. It has thin metal lines on it that act as wires to carry electricity.

For teachers: Abbreviation for printed circuit board. A non-conductive board containing etched conductive pathways that mechanically support and electrically connect electronic components. Often used in the context of hardware manufacturing and engineering.

## Examples

- The technician replaced the damaged PCB in the laptop.
- Modern smartphones require a multi-layered PCB to fit all the necessary processing power into such a small casing.
- The transition to lead-free soldering processes has significantly impacted the thermal requirements for PCB substrates during the assembly of high-density circuit boards.

## Usage notes

- An abbreviation for 'printed circuit board'; typically used as a countable noun or as a modifier before another noun.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.