Definition of "niton" [niton]

• Radon (noun)

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• "This emanation, for which the name niton has been proposed, seems to have the characteristics of an element, and chemically is most like the so-called noble gases, whose discovery was rewarded at the time with the Nobel Prize for Chemistry."
• "Note 27: The German physicist Friedrich Ernst Dorn first noticed in 1900 that radium was giving off a gas which he named niton, the radium emanation later known as radon."
• "We can tell how the elements of high atomic weight, such as uranium and thorium, are constantly giving off particles and are thus by loss or decomposition being changed over into other elements, such as radium, niton, polonium and lead."