Canadian Medical Guide > Physical Sciences > Natural Sciences > Time > Half-Life Terms and Definitions




Half-Life

Medical Definition: The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmacologic, physiologic, or radiologic activity.
Guide Notes: almost never IM; no qualif; may refer to radioactivity, metabolized substances or cells
Previously Indexed: Time (1966-1970),specific radioisotope, substance, or cell

Half-Life Medical Definitions and Terms

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