英语词汇“actinium”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	actinium
释义	actinium noun /ækˈtɪniəm/ /ækˈtɪniəm/ [uncountable] (symbol Ac) jump to other results a chemical element. Actinium is a radioactive metal. Word Originearly 20th cent.: from Greek aktis, aktin- ‘ray’ + -ium, used to form names of metallic elements.
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