life span


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life·span

also life span  (līf′spăn′)
n.
1. A lifetime.
2. The average or maximum length of time an organism, material, or object can be expected to survive or last.

life span

or

lifespan

n
(Biology) the period of time during which a human being, animal, machine, etc, may be expected to live or function under normal conditions

life′ span`


n.
1. the longest period over which the life of any organism or species may extend.
2. the longevity of an individual.
Translations

life span

n(durata della) vita
References in periodicals archive ?
Identifying the genes associated with life span will provide insight into the underlying mechanisms related to aging," said Dr.
FOR SOME TIME SCIENTISTS AROUND the world have been studying the increase in life span in humans--the age at which the average member of a species would die if there were no diseases, predators, or accidents to cause a premature demise.
Life Span, a Chicago-based agency that provides legal services to battered women, is looking at the possibility of filing a law-suit against the Illinois Department of Children and Family Services, said Denice WolfMarkham, Life Span's executive director.
The rechargeable battery offers a life span of up to 500 charge/discharge life cycles and can be expected to last between 1 and 2 years with continuous daily use.
The painstaking research has revealed that a very low calorie diet (30 percent less than normal) prompts two genes to "silence" or shut down other genes in yeast cells, extending the life span of the organism.
and a team of medical experts have ploughed through the plethora of medical studies affecting human longevity and have settled on a list of 126 items that influence life span in either direction.
Many tanks were installed 20 to 30 years ago as suburban communities spread across the United States, and are now surpassing their supposed life span.
DHEA does not prolong the lives of my laboratory mice, and may even shorten their life span.
They were--wait for it--outraged that unworthy humanity seeks to extend its life span without asking the permission of water, trees, furbish louseworts, and a representative council of mammals from mice to moose.
The cost per strand, per day, per tenant is minimal, and if properly designed, he added, "can reduce costs, as it has a life span often outlasting tenant leases.
Second, the increasingly large number and proportion of the elderly that are ill or impaired is the price of an extended life span and its concurrent increase in chronic illness.
The result should be the same when, as here, the life span of the core deposits has been estimated with reasonable certainty.