life expectancy


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

Denmark and Finland, among others, have linked state retirement ages to life expectancy. The Economist, "The welfare state needs updating," 12 July 2018 The opioid crisis has disrupted our usual view of how social determinants of health impact life expectancy trends. Garth Graham, Fortune, "Aetna Foundation President: Here’s What It Will Take to Solve the Opioid Crisis," 28 June 2018 The study, which finds that younger people the world over are generally less religious than their elders, determined that the pattern is generally reversed where prosperity and life expectancy lag. Yonat Shimron, Houston Chronicle, "Younger adults are less religious, and not only in the U.S.," 16 June 2018 In terms of health, the U.S. has the highest infant mortality rate among developed countries as well as the lowest life expectancy overall. Cristian Capotescu, Washington Post, "Poor people die younger in the U.S. That skews American politics.," 31 May 2018 Those decreases in risk correlate to more than 10 years of extra life, according to the paper — a huge leap, especially in the U.S., where life expectancy lags significantly behind that of many other wealthy nations and is even declining modestly. Jamie Ducharme, Time, "These 5 Habits May Help You Live 10 Years Longer, Study Says," 30 Apr. 2018 Good diets and supportive family structure have been linked to Japan's world-leading life expectancy. Alex Horton, ajc, "The world's oldest person dies at 117," 22 Apr. 2018 At the start of this life expectancy quiz, Perls tells the men to begin at a baseline of 86 years before adding and subtracting years. Bernhard Warner,, "Why women live longer than men — and how men will benefit from it," 13 Apr. 2018 Among several key health measures including disease prevalence, mortality, years of life lost and risk factors, the new study highlights state-by-state life expectancy estimates from 1990 and 2016. Amanda Montañez, Scientific American, "State of the Union for Life Expectancy Is Positive, but Some States Lag Behind," 10 Apr. 2018

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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Statistics for life expectancy

Last Updated

29 Sep 2018

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Time Traveler for life expectancy

The first known use of life expectancy was in 1848

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More Definitions for life expectancy

life expectancy


English Language Learners Definition of life expectancy

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

life expectancy


Medical Definition of life expectancy 

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

life expectancy


Legal Definition of life expectancy 

: the average life span of an individual

More from Merriam-Webster on life expectancy

Spanish Central: Translation of life expectancy Encyclopedia article about life expectancy

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