Definition of "polychlorinated" [polychlorinated]

• Having many hydrogen atoms replaced by chlorine. (adjective)

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• "CDDs are a family of 75 different compounds commonly referred to as polychlorinated dioxins."
• "Chemicals called polychlorinated biphenyls PCBs, once widely used in adhesives, paints, lubricants, electric insulators, and printing inks, can cause skin discoloration, liver disorders, cancer, and developmental delays in children."
• "But at issue here is something known as polychlorinated biphenols."