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Half-life   /hæf-laɪf/   Listen
Half-life

noun
1.
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).  Synonym: half life.





WordNet 3.0 © 2010 Princeton University


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"Half-life" Quotes from Famous Books



... were not vital; and a great while it would take for the earth within their pyramid to receive back the life-elements. And we told them certain ways by which they might bring a more speedy life to the soil; and this they were eager to do, being freshly alive after so long a time of half-life. ...
— The Night Land • William Hope Hodgson
... "What's the half-life of that stuff in the freighter?" I asked Orrin. I knew, but I wanted Goil to know too. ...
— Jack of No Trades • Charles Cottrell


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