radioactivity
English
Etymology
radioactive + -ity
Noun
radioactivity (usually uncountable, plural radioactivities)
- Spontaneous emission of ionizing radiation as a consequence of a nuclear reaction, or directly from the breakdown of an unstable nucleus.
- The radiation so emitted; including gamma rays, alpha particles, neutrons, electrons, positrons, etc.
Related terms
Translations
emission of ionizing radiation
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radiation emitted
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Translations to be checked
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See also
Further reading
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