PBB: Meaning and Definition of

PBB

Pronunciation: [key]
— Chem. Chem.
  1. 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. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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