any of a group of compounds in which chlorine atoms replace the hydrogen atoms in biphenyl: used in industry in electrical insulators and in the manufacture of plastics; a toxic pollutant that can become concentrated in animal tissue
Abbreviation: PCB
PCB in American English
(ˌpiˌsiˈbi)
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
Word origin
p(oly)c(hlorinated) b(iphenyl)
Examples of 'PCB' in a sentence
PCB
One from Carter Tillotson, at 5: 23, had the notation " PCB " beside it: Please Call Back.