Any of several mostly carcinogenic chemical formed as an unintentional by-product of many industrial processes involving chlorine such as waste incineration, chemical and pesticide manufacturing and paper bleaching.

【化】戴奥辛。为某些工业程序之副产品，如燃烧废弃物、生产化学品或杀虫剂或纸浆漂白；为致癌物。