Word History

First Known Use

1966, in the meaning defined above

Time Traveler
The first known use of PCB was in 1966

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Cite this Entry

“PCB.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/PCB. Accessed 2 Mar. 2025.

Medical Definition

More from Merriam-Webster on PCB

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