1) A painful, disfiguring condition similar to common acne that it caused by people being exposed to high concentrations of PCB's (polychlorinated biphenyls). It is a biological response to the exposure of different types of organochlorine compounds.
source: [Pollution Engineering; v29n10; 7; 1997 Oct..] [Pollution Engineering; v28n9; 73; 1996 Sept.]