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[ noun ] 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)

Synonyms

half-life

Used in print

(Dan McLachlan, Jr., "Communication Networks and...)

The crowd consequently breaks_up into temporary groups ranging in size from two to six , with a half-life for the cluster ranging from three to twenty minutes .

Related terms

time_period

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