Any of a family of industrial compounds produced by chlorination of biphenyl, noted primarily as an environmental pollutant that accumulates in animal tissue with resultant pathogenic and teratogenic effects.

• 聚氯联二苯一种工业化合物，由二苯经氯化作用而产生，被认为是一种环境污染物质，积聚在动物组织中，能导致病原体和产生畸形生长