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Definition of roentgenium noun from the Oxford Advanced American Dictionary

 

roentgenium

 noun
noun
NAmE//rɛntˈɡɛniəm//
 
, NAmE//rʌntˈɡɛniəm//
 
, NAmE//rɛntˈdʒɛniəm//
 
, NAmE//rʌntˈdʒɛniəm//
 
[uncountable] (symbol Rg)
 
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a chemical element. Roentgenium is a radioactive element that is produced artificially and has no known use. the discovery and naming of roentgenium Roentgenium has no stable isotopes.
See roentgenium in the Oxford Advanced Learner's Dictionary
Check pronunciation: roentgenium

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