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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
During this period, the gap between Black and white life expectancies shrank. Amy Maxmen | Kff Health News, ABC News, 18 Jan. 2025 Though the United States is one of the wealthiest nations, in terms of overall life expectancy, the nation ranks as 49th out of 204 countries. Kristen Rogers, CNN, 15 Jan. 2025 From 2015 to 2021, Indigenous people in Alberta suffered a collapse in life expectancy of seven years, to 60 for men and 66 for women. David Frum, The Atlantic, 15 Jan. 2025 In general, people are living longer — life expectancy in the U.S. has risen from approximately 61 years in 1940 to over 79 years today. Lawrence D. Sprung, Founder/wealth Advisor At Mitlin Financial, Inc., CNBC, 7 Jan. 2025 See all Example Sentences for life expectancy 

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 23 Jan. 2025.

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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