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radium emanation Syllabification: ra·di·um em·a·na·tion

Definition of radium emanation in English:

noun

Archaic term for radon.
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.
Definition of radium emanation in:
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