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Radioactivity   /rˈeɪdioʊæktˈɪvəti/  /rˌeɪdioʊæktˈɪvəti/   Listen
Radioactivity

noun
1.
The spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay.  Synonym: radiation.



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"Radioactivity" Quotes from Famous Books



... the phenomena bound up with radioactivity, which were discovered in direct consequence of Crookes's work. We know that the naturally radioactive elements are all in the group of those with the highest atomic weight. This fact, seen together with the characteristics of radioactivity, ...
— Man or Matter • Ernst Lehrs

... causing a burning sensation and damage on skin or tissue] cauterizer^; caustic, lunar caustic, alkali, apozem^, moxa^; acid, aqua fortis [Lat.], aqua regia; catheretic^, nitric acid, nitrochloro-hydric acid, nitromuriatic acid; radioactivity, gamma rays, alpha particles, beta rays, X-rays, radiation, cosmic radiation, background radiation, radioactive isotopes, tritium, uranium, plutonium, radon, radium. sunstroke, coup de soleil [Fr.]; insolation. [artifacts requiring heat in their manufacture] pottery, ceramics, crockery, ...
— Roget's Thesaurus of English Words and Phrases: Body • Roget



Words linked to "Radioactivity" :   corpuscular radiation, radiation, radioactive, particulate radiation, emission, radioactivity unit



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