half-life

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Synonyms for half-life

the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)

References in periodicals archive ?
Nucleus realized that data half lives can be measured based on the tempo of data usage for making decisions using four factors impacting the way companies manage their products' lifecycles.
Earlier studies of smaller doses of AVI-4557 had revealed shorter half lives.