life expectancy
"Life expectancy" is a key demographic measure used to understand the average lifespan of a population based on various factors like age, sex, and health.
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Definition
B2Health and Demographics
(technical, statistical)The average number of years a person is expected to live based on current mortality rates.
Example
- The life expectancy in many developed countries exceeds 80 years.
- Improved healthcare has significantly increased life expectancy over the past century.
C1General
(figurative)The expected duration of time something will last or remain functional.
Example
- The life expectancy of this software is around five years.
- With proper maintenance, the life expectancy of the bridge can be extended.
Similar
Terms that have similar or relatively close meanings to "life expectancy":