life expectancy

noun

: 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 But rurality alone doesn't explain the gap in life expectancy. Arielle Zionts, CBS News, 15 Apr. 2024 With her type of cancer, life expectancy is often measured in months rather than years. Andrew J. Campa, Los Angeles Times, 14 Apr. 2024 Fink says that Social Security is in crisis because life expectancy is rising. Randi Weingarten, Fortune, 5 Apr. 2024 Since 1990, global life expectancy increased by 6.2 years, mainly due to reductions in death from diarrhea and lower respiratory infections and better outcomes for people suffering from a stroke or ischemic heart disease. Alex Tanzi/bloomberg, TIME, 5 Apr. 2024 Magnesium was also found to protect telomeres from shortening, which are linked to aging and life expectancy. Elizabeth Gamillo, Discover Magazine, 5 Apr. 2024 But Fink says the creation of the Social Security system was based on shorter life expectancies, when the majority of people who contributed fund didn't live long enough enough to be paid in retirement. Paul Davidson, USA TODAY, 27 Mar. 2024 In 2022, a 1.1-year increase brought overall life expectancy at birth to 77.5 years, according to final data published Thursday by the US Centers for Disease Control and Prevention. Deidre McPhillips, CNN, 21 Mar. 2024 Among the predictors of people’s happiness are not just economic well-being, the report says, but also other factors including freedom, life expectancy and social support. Yuliya Talmazan, NBC News, 20 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.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/life%20expectancy. Accessed 26 Apr. 2024.

Kids Definition

life expectancy

noun
: 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

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

Legal Definition

life expectancy

noun
: the average life span of an individual

More from Merriam-Webster on life expectancy

Last Updated: - Updated example sentences
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