polychlorinated en · ADJ
Etymology
Etymology tree Proto-Indo-European *pleh₁-der. Proto-Indo-European *polh₁ús Ancient Greek πολῠ́ς (polŭ́s)lbor. English poly- English chlorinated English polychlorinated From poly- + chlorinated.
Meanings
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(not-comparable) Having many hydrogen atoms replaced by chlorine.
Another environmental factor thought to be affecting some coastal birds, although comparatively little is yet known about its extent or origin, is the presence of marine pollutants such as polychlorinated biphenyls (PCBs) and toxic heavy metals.
1986, Valerie M. Thom, “Coastal habitats”, in Birds in Scotland, London: T & AD Poyser, published 2011, →ISBN, page 25: