单词 | polonium |
释义 | polonium/pəˈləʊnɪəm![]() noun [mass noun] The chemical element of atomic number 84, a radioactive metal occurring in nature only as a product of radioactive decay of uranium. (Symbol: Po) In the process, she discovered two new elements that are millions and billions of times more radioactive than uranium: radium and polonium....
OriginLate 19th century: modern Latin, from medieval Latin Polonia 'Poland' (the native country of Marie Curie, the element's co-discoverer). Rhymes |
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