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half-life The time over which the atoms of a particular radioactive nuclide decay to half their original intensity of emitted radiation. The half-life is a characteristic property of each radioactive isotope.
Ãâó: www.nuce.boun.edu.tr/glossary.html
half-life The period of time necessary for one half of a substance introduced to a living system or ecosystem to be eliminated or disintegrated by natural processes.
Ãâó: www.great-lakes.net/humanhealth/about/words_h.html
half-life p. see half-life.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
half-life The period of time it takes for half the nuclei of a radioactive element to undergo decay to another nuclear form.
Ãâó: www.nuenergy.org/alt/glossary.htm
half-life The time required for radioactive material to lose 50% of its activity by radioactive decay.
Ãâó: www.westchestergov.com/discemergplan/glossaryofter...
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