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
Five years after the beginning of the COVID-19 pandemic, the average life expectancies in the U.S. have decreased.
—Julia Craven, Popular Science, 30 Jan. 2025
Black women's average life expectancy stood at nearly age 77 in 2018, and Black men until almost 70.
—Maya Goldman, Axios, 28 Jan. 2025
Our life expectancy at birth is 77.5 years, almost five years shorter than the average life expectancy in other high-income countries.
—Barbara A. Perry, Newsweek, 27 Jan. 2025
Known as the most toxic place on Earth due to a copper smelting plant, here the average life expectancy is 38 and cancer affects the population disproportionally.
—Carlos Aguilar, Variety, 25 Jan. 2025
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Word History
First Known Use
1848, in the meaning defined above
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 2 Feb. 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
Britannica.com: Encyclopedia article about life expectancy
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