life expectancy


: the average lifespan of an individual

Examples of life expectancy in a Sentence

improvements in diet that have resulted in greater life expectancy for many people calculating the life expectancies of different social groups
Recent Examples on the Web Maintaining the right amount of magnesium in our diets and correcting deficiencies might increase life expectancy and reduce disease risk. Elizabeth Gamillo, Discover Magazine, 5 Apr. 2024 Between 1950 and 1980, the life expectancy of 65-year-olds increased by 2.5 years from 78.9 to 81.4. Karl W. Smith, The Mercury News, 5 Apr. 2024 Living With Endometriosis Endometriosis is not fatal, so people with the disease have normal life expectancies. Anna Almendrala, Health, 30 Mar. 2024 Advancements in human health have extended life expectancies, making effective retirement planning increasingly crucial. Julian Hayes Ii, Forbes, 28 Mar. 2024 Multiply this times 60 minutes in an hour, times 24 hours a day, times 365 days a year, and times a life expectancy of 73 years. Bryant Stamford, The Courier-Journal, 14 Mar. 2024 In very low-opportunity neighborhoods, life expectancy dropped to 76 years old. Claire Thornton, USA TODAY, 14 Mar. 2024 With Russian economy far from collapse, U.S. opts for tougher punishment The United Nations in 1990 introduced the index — which blends a population’s life expectancy, years of schooling and per-person income — as a broad gauge of human development. David J. Lynch, Washington Post, 13 Mar. 2024 By 2060, life expectancy for the total population is projected to increase by about six years, from 79.7 years old in 2017 to 85.6 years old in 2060. Peter Ross, Forbes, 28 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'life expectancy.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1848, in the meaning defined above

Time Traveler
The first known use of life expectancy was in 1848

Dictionary Entries Near life expectancy

Cite this Entry

“Life expectancy.” Dictionary, Merriam-Webster, Accessed 21 Apr. 2024.

Kids Definition

life expectancy

: the number of years that an individual or group of a certain age can expect to live on the average based on experience in the past for individuals or groups of the same kind

Medical Definition

life expectancy

: an expected number of years of life based on statistical probability

Legal Definition

life expectancy

: the average life span of an individual

More from Merriam-Webster on life expectancy

Last Updated: - Updated example sentences
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