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PBB

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Chemistry.
any of the highly toxic and possibly carcinogenic aromatic compounds consisting of two benzene rings in which bromine takes the place of two or more hydrogen atoms: used as a fire retardant and additive for plastics.
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Origin of PBB

p(oly)b(rominated)b(iphenyl)

Words nearby PBB

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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