biologic half-life


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bi·o·log·ic half-life

the time required for one-half of an amount of a substance to be lost through biologic processes.

bi·o·log·ic half-life

(bī'ŏ-loj'ik haf'līf)
The time required for one half of an amount of a substance to be lost through biologic processes.

bi·o·log·ic half-life

(bī'ŏ-loj'ik haf'līf)
The time required for one half of an amount of a substance to be lost through biologic processes.
References in periodicals archive ?
where [P.sub.t] is the amount of pollutant in the compartment, and k is the first-order biologic elimination constant, calculated by 0.693/[T.sub.1/2] ([T.sub.1/2] is the biologic half-life) (Schoenwald 2001).
On the other hand, the fact that chlorpyrifos oxon was more potent than TCP and less potent than chlorpyrifos probably indicates that the oxon does not contribute significantly to mitotic inhibition and loss of cells in vivo, in light of the much lower concentrations and short biologic half-life of this active metabolite (51).
The AUC, MRT, VRT, and biologic half-life ([t.sub.1/2]) of maternal blood, liver, and kidneys, and whole fetus after a single oral administration of bisphenol A at a dose of 1 g/kg to pregnant rats.