单词	radium
释义	radium noun ra·​di·​um ˈrā-dē-əm  often attributive : an intensely radioactive metallic chemical element that occurs in combination in minute quantities in minerals (such as pitchblende or carnotite), emits alpha particles and gamma rays to form radon, and is used chiefly in the treatment of cancer and in radiographic devices see Chemical Elements Table Example Sentences Recent Examples on the Web As these elements decay, uranium (No. 92 on the periodic table) degrades to radium (No. 88), which in turn degrades into radon (No. 86). Brian Maffly, The Salt Lake Tribune, 20 May 2022 In suburban Philadelphia’s Moorestown at the North Church Street Water Treatment Plant, where officials unveiled the funding Friday, about $20 million will cover new filters to remove radium and other toxins from water. From Usa Today Network And Wire Reports, USA TODAY, 24 May 2022 Radon occurs naturally in the presence of radioactive elements, such as uranium and radium. Brian Maffly, The Salt Lake Tribune, 20 May 2022 In 2019, the Lake County Public Works Department issued a letter to Lake Zurich asking the village to remove radium produced by its ion exchange process from the wastewater stream sent to Lake County, according to Village Manager Ray Keller. Elizabeth Owens-schiele, chicagotribune.com, 8 Mar. 2022 Why Marie: The first woman to win the Nobel Prize for Physics, Marie Curie is best known for her discovery of both polonium and radium, as well as fundamentally changing our understanding of radioactivity. Yola Robert, Forbes, 31 Jan. 2022 At present, the local system filters the radium and it’s safe to drink. Jesse Wright, chicagotribune.com, 2 Feb. 2022 This 14 by 14 inch, over-the-counter device takes minutes to set up and removes 83 contaminants, such as lead, chromium, copper, radium, chlorine, and more. Kayla Hui, Health.com, 6 Jan. 2022 Other notorious patent medicines common in this era include Radithor, a radioactive tonic made from dissolved radium. David Reamer, Anchorage Daily News, 21 Nov. 2021 See More Word History Etymology New Latin, from Latin radius ray First Known Use 1899, in the meaning defined above Phrases Containing radium radium therapy radium therapy Kids Definition radium noun ra·​di·​um ˈrā-dē-əm  : a strongly radioactive element found in very small quantities in various minerals (as pitchblende) and used in the treatment of cancer Medical Definition radium noun ra·​di·​um ˈrād-ē-əm  often attributive : an intensely radioactive shining white metallic element that resembles barium chemically, that occurs in combination in minute quantities in minerals (as pitchblende or carnotite) principally as the isotope of mass number 226 formed from uranium 238, having a half-life of 1620 years, and emitting alpha particles and gamma rays to form radon, and that is used chiefly in luminous materials and in the treatment of cancer —symbol Ra see Chemical Elements Table
随便看	emperizing emperor emperor boa emperor butterfly emperor fish emperor goose emperor moth emperor penguin emperors emperorship emperorships empery empest empetra Empetraceae empetraceaes empetraceous Empetrum empetrums emphases emphasis emphasise emphasised emphasiser emphasisers

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。