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 As China’s life expectancy has risen, delaying retirement has become more important to offset the demographic challenges from its decades-long enforcement of a one-child policy, which left a generation of single children supporting a large elderly population. Bloomberg News, TIME, 13 Sep. 2024 The previous retirement ages were set in the 1950s, when life expectancy was only around 40 years, Ms. Peng said. Huizhong Wu and Emily Wang Fujiyama, The Christian Science Monitor, 13 Sep. 2024 What is the life expectancy of a person with hemochromatosis? Sarah Jividen, Health, 12 Sep. 2024 However, individuals whose cancer has metastasized (spread beyond the uterus) have an average life expectancy of only 15 months with treatment. Nick Blackmer, Verywell Health, 6 Sep. 2024 See all Example Sentences for life expectancy 

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 19 Sep. 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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