单词	ionium
释义	ionium noun io·​ni·​um ī-ˈō-nē-əm  : a natural radioactive isotope of thorium having a mass number of 230 Example Sentences Recent Examples on the Web Rona set to work isolating a potential new element called ionium. New York Times, 28 Aug. 2019 Word History Etymology ion + -ium; so called from its ionizing action First Known Use 1907, in the meaning defined above Medical Definition ionium noun io·​ni·​um ī-ˈō-nē-əm  : a natural radioactive isotope of thorium having a mass number of 230
随便看	bullionism bullionist bullionists bullionless bullions bullish bullisher bullishest bullishlier bullishliest bullishly bullishness bullishnesses bullmastiff bullmastiffs bullnecked bullnecks bullnose pepper bullnose tool bullnoses bullnut bullock bullock block bullock heart bullock's lungwort

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