Half-life

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目次

half-life

  • 半減期(日本語)
  • (Español)

Definition

Glossary of "Life (9th ed.)" by Sadava et al. (2011)

  • The time required for half of a sample of a radioactive isotope to decay to its stable, nonradioactive form, or for a drug or other substance to reach half its initial dosage.

Glossary of "Environmental Science: Earth as a Living Planet (2nd ed.)" by Botkin & Keller (1998)

  • The time required for half a substance to disappear; the average time required for one-half of a radioisotope to be transformed to some other isotope; the time required for one-half of a toxic chemical to be converted to some other form.

文献(引用)


広島大学 / デジタル自然史博物館 / 植物 / アルファベット順 / H | 仮名順 にもどる