uranium

Part of speech: noun

A heavy, hard, white, metallic element found in pitchblende. Compare RADIUM.

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Usage examples "uranium":

  1. The maximum amount which can be present in a state of equilibrium is about one part of radium in 3, 000, 000 parts of uranium. - "The Economic Aspect of Geology", C. K. Leith.
  2. Uranium 1 - 0. 0137 mm. - "The Birth-Time of the World and Other Scientific Essays", J. (John) Joly.
  3. Radium is itself probably a product of the disintegration of uranium, the heaviest of known metals, with an atomic weight some 240 times greater than that of hydrogen. - "The Story of Evolution", Joseph McCabe.