PCB Hear it!

PCB definition

PCB (pē′sē′bē′)

noun

any of a group of chlorinated isomers of biphenyl, formerly used in the form of a toxic, colorless, odorless, viscous liquid, esp. as an insulator in electrical equipment

Etymology: p(oly)c(hlorinated) b(iphenyl)

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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