American Heritage Dictionary
(3)
Century Dictionary
GNU Webster's 1913
(1)
WordNet
(1)
Elsewhere on the web
If we all had the mortality rate of present-day Western 11-year-olds, our half-life would be about 1000 years.— April's CR Diary
The programs that got the awards all have a very short "half-life" - you use them, and return to the OS quickly (to process your results further) …— TamsPalm - the Palm OS / web OS Blog
Mark this official forewarning, Cedar County Highway Maintenance: half-life isotope calculations by Professor Chuck indicate your truck will be unsafe for usage until next Wednesday, and Iowahawk cannot be liable for mutations of your foolish crews!— iowahawk
In terms of a strong male hard on, it also performs another vital function - increasing the half-life of the endothelium relaxation factor, important for a harder and longer erection.— Find Free Articles - ArticlesBase
Because the atmosphere of crisis is now so thick at the White House, any moment of triumph has a fleeting half-life, but the impending passage of the seven-hundred-and-eighty-seven-billion-dollar stimulus bill provided, at least for an afternoon, a sense of satisfaction.— The New Yorker

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