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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



... not believe we can. But they can torture us," replied Lambert. "It is an everlasting half-life or quarter-life, and these creatures who call this Hell's Dimension home, have nothing but hatred for us ...
— Astounding Stories, April, 1931 • Various

... "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

... I think not," returned the little prophet. "I think rather we have done with it for ever. The man with life so in himself, will not dream of asking whether he shall live. It is only in the twilight of a half-life, holding in it at once much wherefore it should desire its own continuance, and much that renders it unworthy of continuance, that the doubtful desire of immortality can arise.—Do you remember"—here Polwarth turned to Wingfold—"my mentioning to you once a certain manuscript of strange interest—to ...
— Thomas Wingfold, Curate • George MacDonald

... he is weak—one quarter where temptations are either not irresistible, or else are not recognised as alluring to what is wrong. But we all know that training, though never perfect, can make the difference between a decently right and happy life and a bad, corrupt half-life or no life. What does training do for the nimble-footed young beauties of the London ball-room? It makes them nimble-footed, we admit. ...
— Modern Women and What is Said of Them - A Reprint of A Series of Articles in the Saturday Review (1868) • Anonymous

... Willows said. "Half-life forty-six point five days. Beta and gamma emitter. Converts to Thallium ...
— The Bramble Bush • Gordon Randall Garrett



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