LONGEVITY

Longevity

The word "longevity" is sometimes used as a synonym for "life expectancy" in demography - however, the term "longevity" is sometimes meant to refer only to especially long lived members of a population, whereas "life expectancy" is always defined statistically as the average number of years remaining at a given age. For example, a population's life expectancy at birth is the same as the average age at death for all people born in the same year . Longevity is best thought of as a term for general audiences meaning 'typical length of life' and specific statistical definitions should be clarified when necessary.

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longevity

Noun

  1. The quality of being long-lasting, especially of life
    Grandfather had incredible longevity — he lived to be 105 years old!


The above text is a snippet from Wiktionary: longevity
and as such is available under the Creative Commons Attribution/Share-Alike License.

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