Radioactivity

The spontaneous transformation of a nuclide into one or more different nuclides, accompanied by either the emission of particles from the nucleus, nuclear capture or ejection of orbital electrons, or fission. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)

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Tree Number(s): G01.828

MeSH Unique ID: D011851

Entry Terms:

• Radioactivities
• Nuclear Decay
• Decay, Nuclear
• Radioactive Disintegration
• Disintegration, Radioactive
• Disintegrations, Radioactive
• Radioactive Disintegrations

All MeSH Categories
Phenomena and Processes Category
Physical Phenomena
Radioactivity