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radium sulfate

noun

Chemistry.
  1. a white, crystalline, water-insoluble, poisonous, radioactive solid, RaSO 4 , used chiefly in radiotherapy.


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Word History and Origins

Origin of radium sulfate1

First recorded in 1970–75
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Example Sentences

As Willis’s blog explains, the device’s radioactivity comes from tiny pieces of paper “uniformly loaded with radium sulfate.”

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radium Fradium therapy