et

poolestusaeg

1 substantive

EKI Combined Dictionary 2026

Last modified 08.03.2026

Meanings

ajavahemik, mille vältel laguneb pool radioaktiivse aine ebastabiilsetest osakestest

Translations

Good to know

Radioaktiivsetel elementidel on lühem, püsivatel elementidel pikem poolestusaeg.

Terminological databases

EKI terminibaas Esterm

ID 695315 Last modified 08.03.2026
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Domain foodstuffs - production - products - tradepublic safety servicesstandardisation
half-life preferred
half-life period
half-life value
  • ajavahemik, mille vältel laguneb pool radioaktiivse aine ebastabiilsetest osakestest
  • for a single radioactive decay process,the mean time required for the activity to decrease to half its value by that process
  • Temps nécessaire pour que l'activité d'un radionucléide donné diminue jusqu'a la moitié de sa valeur par suite d'un processus de désintégration détermine.terme a proscrire:demi-vie.En effet,la période radioactive n'est pas égale a la moitié de la vie moyenne.
half-life preferred
Usage examples
  • Maximum permitted levels for foodstuffs and feedingstuffs ... all other nuclides of half-life greater than 10 days ...
half-life period
half-life value
halflife

Geoloogia terminibaas

ID 456231 Last modified 22.06.2023
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Domain geochemistry
  • aeg, mis kulub radioaktiivse elemendi/isotoobi lagunemiseks tütar-elementideks

Koolisõnastikud 2005–2010

ID 595960 Last modified 04.06.2021
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Domain physics
poolestusaeg
время полураспада
  • ajavahemik , mille kestel vaadeldavate radioaktiivsete tuumade arv väheneb kaks korda
poolestusaeg
время полураспада

Koolisõnastikud 2005–2010

ID 599953 Last modified 19.08.2021
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Domain chemistry
poolestusaeg
период полураспада
  • aeg, mille vältel reageerib ära (nt laguneb) pool lähteaine kogusest (kasutatakse ka radioaktiivsuse iseloomustamisel)
poolestusaeg
период полураспада

Militerm | riigikaitseterminite andmebaas

ID 526514 Last modified 22.06.2023
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Domain Weapons and Weapon Systems -> Nuclear Weapons
poolestusaeg preferred
poolnemisaeg deprecated
half-life preferred
  • aeg, mis kulub, et teatud radioaktiivse aine aktiivsus väheneks radioaktiivse lagunemise tõttu poole võrra
  • the time required for the activity of a given radioactive species to decrease to half of its initial value due to radioactive decay
Good to know
  • Poolestusaeg on iga radioaktiivse aine iseloomulik tunnus, mis ei sõltu selle hulgast ega seisundist. Teatud isotoobi efektiivne poolestusaeg on aeg, mis kulub, et selle hulk organismis väheneks poole võrra nii radioaktiivse lagunemise kui ka bioloogilise eritamise tagajärjel.
Good to know
  • The half-life is a characteristic property of each radioactive species and is independent of its amount or condition. The effective half-life of a given isotope is the time in which the quantity in the body will decrease to half as a result of both radioactive decay and biological elimination.
poolestusaeg preferred
poolnemisaeg deprecated
half-life preferred
Good to know
  • Approval status:
  • 2015
période radioactive preferred
Good to know
  • Approval status:
  • 2015

Word forms

Inflection Type 22u

poolestusaeg poolestusajad
poolestusaja poolestusaegade
poolestusaega poolestusaegu ~ poolestusaegasid

Etymology not available

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Phrases and phrasal verbs not available

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