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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.





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"Half life" Quotes from Famous Books



... let me read thy lesson right or no, Of one good gift from thee my heart is sure: Old I shall never grow While thou each, year dost come to keep me pure 85 With legends of my childhood; ah, we owe Well more than half life's holiness to these Nature's first lowly influences, At thought of which the heart's glad doors burst ope, In dreariest days, to ...
— The Vision of Sir Launfal - And Other Poems • James Russell Lowell
... noticed that some of the figures in Titian's pictures were only half life-size, and yet they looked natural; and one day, thinking I would trace myself in an upright mirror, I stood at arm's length from it and with a brush and Chinese white, I made a rough outline of my face and figure, and when I measured it I found that my drawing was exactly half as ...
— The Theory and Practice of Perspective • George Adolphus Storey


Words linked to "Half life" :   period of time, time period, period


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