英语词汇“promethium”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	promethium
释义	promethium noun /prəˈmiːθiəm/ /prəˈmiːθiəm/ [uncountable] (symbol Pm) jump to other results a chemical element. Promethium is a radioactive metal that was first produced artificially in a nuclear reactor and is found in small amounts in nature. Word Origin1940s: modern Latin, from the name of the Titan Prometheus, a demigod in Greek mythology who was worshipped by craftsmen.
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