ポリ塩えん化かビフェニル

noun

polychlorinated biphenyl; PCB

Technical term for a group of synthetic organic compounds once widely used in electrical equipment and industrial applications; now heavily regulated due to toxicity and environmental persistence.

• ポリ塩えん化かビフェニルは環かん境きょう中ちゅうで分ぶん解かいされにくい。

  Polychlorinated biphenyls are difficult to break down in the environment.

• 古ふるい変へん圧あつ器きからポリ塩えん化かビフェニルが検けん出しゅつされた。

  Polychlorinated biphenyls were detected in an old transformer.