Definition of radium emanation in English:

radium emanation

Line breaks: ra¦dium em¦an|ation

noun

Archaic term for radon.
More example sentences
  • By 1900, Friedrich Dorn discovered the isotope radon - 222 and called it radium emanation (Em).
  • In 1921 Margaret Uhlig suggested that radium emanation, later known as Rn, may be the cause of the lung cancers.

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Pronunciation: ˌsalməˈneɪzə
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