And now, a radioactive word, from one of the most astonishing storiesof the week. polonium (puh-LOH-nee-uhm) n. Symbol "Po." A naturally radioactive metallic element, occurring in minute quantities as ...
British doctors have linked polonium to the poisoning death of Alexander Litvinenko, the former Russian spy. Polonium is a highly radioactive metallic element and is most often used as polonium 210.
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