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{%type%} Definitions

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n. - A metallic element that occurs in minute amounts in uranium ores.

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Usage examples (38)
  • France had been the pioneer in radium therapy, but it was not the only one.
  • Tons of material have to be treated in order to extract radium from the ore.
  • In fact it takes 1,620 years before the activity of radium is reduced to a half.
  • In the mixture of barium and radium chlorides the radium is present only in the proportion of about 3 parts per
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