life expectancy

noun

Definition of life expectancy

: the average life span 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 Che reported that a study showed Covid-19 reduces life expectancy for Black people. NBC News, "'Saturday Night Live' takes shots at U.S.'s struggling vaccination rollout," 28 Feb. 2021 The report this week from the CDC’s National Center for Health Statistics found that In the first half of 2020, life expectancy at birth for the total US population was 77.8 years, declining by 1 year from 78.8 in 2019. BostonGlobe.com, "Life expectancy in US likely to decline further as more pandemic data is studied, CDC chief says," 19 Feb. 2021 Since life expectancy has increased—from 70 years old in 1959 to about 83 for today’s 65-year-olds—many people want to work longer, for both personal and financial reasons. Betsy Morris, WSJ, "How to Know When to Quit Your Job," 24 Jan. 2021 However, the death rate tied to population has generally dropped during the same time period as life expectancy increased with improved sanitation, better nutrition and health care, and reduced environmental contamination, among other factors. Matthias Gafni, SFChronicle.com, "COVID’s deadly toll: More than 300,000 Californians died in 2020, at least 30,000 more than average," 31 Dec. 2020 But life expectancy for 2020 could end up dropping as much as three full years, said Robert Anderson of the Centers for Disease Control and Prevention. NBC News, "Covid pandemic turned 2020 into deadliest year in U.S. history, CDC finds," 22 Dec. 2020 But life expectancy for 2020 could end up dropping as much as three full years, said Robert Anderson of the Centers for Disease Control and Prevention. Arkansas Online, "U.S. deaths in 2020 top 3 million, by far most ever counted," 22 Dec. 2020 But life expectancy for 2020 could end up dropping as much as three full years, said Robert Anderson of the Centers for Disease Control and Prevention. Mike Stobbe, Anchorage Daily News, "US deaths top 3 million in 2020, by far the most ever counted," 22 Dec. 2020 But life expectancy for 2020 could end up dropping as much as three full years, said Robert Anderson of the Centers for Disease Control and Prevention. Mike Stobbe, USA TODAY, "More than 3 million people died in 2020 – the deadliest year in US history," 22 Dec. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'life expectancy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of life expectancy

1848, in the meaning defined above

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Time Traveler for life expectancy Time Traveler

The first known use of life expectancy was in 1848

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Statistics for life expectancy

Last Updated

7 Mar 2021

Cite this Entry

“Life expectancy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/life%20expectancy. Accessed 9 Mar. 2021.

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More Definitions for life expectancy

life expectancy

noun

English Language Learners Definition of life expectancy

: the average number of years that a person or animal can expect to live

life expectancy

noun

Medical Definition of life expectancy

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

life expectancy

noun

Legal Definition of life expectancy

: the average life span of an individual

More from Merriam-Webster on life expectancy

Britannica.com: Encyclopedia article about life expectancy

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