Dictionary

polychlorinated biphenyl

noun poly·chlo·ri·nat·ed biphenyl \ˌpä-lē-ˈklr-ə-ˌnā-təd-\

Definition of POLYCHLORINATED BIPHENYL

:  any of several compounds that are produced by replacing hydrogen atoms in biphenyl with chlorine, have various industrial applications, and are toxic environmental pollutants which tend to accumulate in animal tissues —called also PCB
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First Known Use of POLYCHLORINATED BIPHENYL

1962
Medical Dictionary

polychlorinated biphenyl

noun poly·chlo·ri·nat·ed biphenyl \ˌpäl-i-ˈklōr-ə-ˌnāt-əd-, -ˈklr-\

Medical Definition of POLYCHLORINATED BIPHENYL

:  any of several compounds that are produced by replacing hydrogen atoms in biphenyl with chlorine, have various industrial applications, and are toxic environmental pollutants which tend to accumulate in animal tissues—called also PCB

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