- effective half-life
- the time required for the radioactivity of a radioactive nuclide to be diminished 50 per cent through the combined action of radioactive decay and biological elimination.
Medical dictionary. 2011.
effective half-life
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Effective half-life — denotes the halving of radioactive material in a living organism by means of radioactive decay and biological excretion. A decay constant is needed to calculate the half life. It is the sum of the biological and physical decay constants, as in… … Wikipedia
effective half-life — efektinė pusėjimo trukmė statusas T sritis fizika atitikmenys: angl. effective half life vok. effektive Halbwertszeit, f rus. эффективный период, m; эффективный период полувыведения радиоактивного изотопа из организма, m; эффективный период… … Fizikos terminų žodynas
effective half-life — efektinė pusėjimo trukmė statusas T sritis Standartizacija ir metrologija apibrėžtis Apibrėžtį žr. priede. priedas( ai) Grafinis formatas atitikmenys: angl. effective half life vok. effektive Halbwertszeit, f rus. эффективный период, m pranc.… … Penkiakalbis aiškinamasis metrologijos terminų žodynas
effective half-life — efektinė pusėjimo trukmė statusas T sritis apsauga nuo naikinimo priemonių apibrėžtis Apibrėžtį žr. priede. priedas( ai) MS Word formatas atitikmenys: angl. effective half life rus. эффективный период … Apsaugos nuo naikinimo priemonių enciklopedinis žodynas
Half-life (disambiguation) — Half life is a mathematical and scientific description of exponential decay.Half life may also refer to: * Biological half life, pertaining to organisms (also refers to elimination half life , a pharmacokinetic parameter in medicine) ** Effective … Wikipedia
half-life — The period in which the radioactivity or number of atoms of a radioactive substance decreases by half; similarly applied to any substance, such as a drug in serum, whose quantity decreases exponentially with time. Cf.:half time. biologic half… … Medical dictionary
half-life — The time required for the activity of a given radioactive species to decrease to half of its initial value due to radioactive decay. The half life is a characteristic property of each radioactive species and is independent of its amount or… … Military dictionary
Biological half-life — For other uses, see Half life (disambiguation). The biological half life or elimination half life of a substance is the time it takes for a substance (for example a metabolite, drug, signalling molecule, radioactive nuclide, or other substance)… … Wikipedia
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Creatures in the Half-Life series — The following is a list of creatures in the Half Life series. Half Life is a science fiction first person shooter computer game series which consists of two full games, two episodic games, and three third party made expansions, as well as a… … Wikipedia
