life expectancy

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life expectancy

[′līf ik′spek·tən·sē]
(biology)
The expected number of years that an organism will live based on statistical probability.
(engineering)
The predicted useful service life of an item of equipment.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

life expectancy

the number of years the average member of a social group can expect to live. This is largely determined by environmental factors, though improvements in these do not lead to an infinitely extendable life expectancy, since the maximum period of existence of a member of the human species remains at about 110 years and biological factors impose limits less than this for most humans. The average life expectancy at birth in the UK in the late 20th-century was for men 71, and for women 76, and this has changed little in the last half century However, there is variation according to social class and region. Currently these demographic differences are widening, with life expectancy in the north of England and Scotland being significantly less than that in the south. See also BLACK REPORT, DEATH RATE AND MORTALITY RATE.
Collins Dictionary of Sociology, 3rd ed. © HarperCollins Publishers 2000
References in periodicals archive ?
Spain is forecast to overtake Japan, ranked first in 2016, which drops into second place with an average lifespan of 85.7 in 2040.
Rylan, meanwhile, has vowed to make the spin-off show the "most risque yet" in a bid to keep his job longer than a year, the average lifespan of most Xtra Factor presenters.
The post Average lifespan of stray dog in Cyprus 1.5-2 years appeared first on Cyprus Mail .
This is why actuaries predict that babies born in 2000 will have an average lifespan of 100 years.
Noting that the average lifespan of a Chinese enterprise is only 4.2 years, the author provides advice to Chinese companies on how to achieve greater longevity, stressing the well-being of the enterprise managers and key staff and drawing lessons from the management approaches of such companies as Wal-Mart, Dell, and McDonald's.
The average lifespan for such a tiger in captivity is 15 to 26 years, according to the San Diego Zoo's website.
He says that in the past 40 years the US population has increased to more than 300 million and that this is due mostly to "an imprudent immigration policy." But in those years the average lifespan of US residents has increased substantially due to better nutrition and healthcare.
Dutt also confirmed that each battery comes with a five-year warranty--the average lifespan of a walkie lift truck.
What is the average lifespan of a housefly: twenty days, twenty weeks or twenty months?
The encouraging news: Cats' average lifespan increased to 12 years, up a year since 2002, thanks to continuing advances in veterinary medicine.
Durable goods, as defined by the Bureau of Economic Analysis (BEA), include goods that have an average lifespan of at least three years, such as automobiles and household furnishings.