Noun
radioactive uranium.
Usage- Uncountable
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The whole story of the line of descent carries us from Uranium through Radiouranium, Uranium X, Ionium, Radium, Emanation, and its successive daughter substances to Polonium, and then (with just a possibility of doubt), to lead.
In January 1978, a Soviet RTG satellite, Kosmos 954, reentered the atmosphere over Canada and spread radiouranium across parts of that country (Richmond 1989).
The determination of radiouranium is discussed in section 12.5.16.8.