English

Noun

polychlorinated biphenyl ‎(plural polychlorinated biphenyls) (abbreviation PCB)

1. (organic chemistry) Any of a class of aromatic organic compounds formed by the chlorination of the hydrocarbon biphenyl; they have many industrial applications but are damaging to the environment.

See also

• monochlorobiphenyl
• dichlorobiphenyl
• trichlorobiphenyl
• tetrachlorobiphenyl
• pentachlorobiphenyl
• hexachlorobiphenyl
• heptachlorobiphenyl
• octachlorobiphenyl
• nonachlorobiphenyl
• decachlorobiphenyl