Definitions for "Polychlorinated Biphenyl"
A fire-resistant carcinogen, once commonly used as a coolant in electrical transformers, that can be released by leaks, spills, or fire. Also used in heat transfer, hydraulic fluids, lubricants, insecticides, and light ballasts. Toxic by skin contact and inhalation.
one of a group of chlorinated substances that are often linked to cancer, reproductive disorders and liver disfunction
(PCB) One of a class of aromatic organic compounds with two six-carbon unsaturated rings, with chlorine atoms substituted on each ring and more than two such chlorine atoms per molecule of PCB. PCBs are very stable, resist both chemical and biological degradation, and are toxic to many biological species.