improvements in diet that have resulted in greater life expectancy for many people
calculating the life expectancies of different social groups
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According to the Association of Zoos and Aquariums, male polar bears have a median life expectancy of nearly 21 years, but there's not enough data on female lifespans.—Madeline Bartos, CBS News, 8 Dec. 2025 In 2016, two years after the diagnosis, Aguirre’s health took a turn for the worse and her life expectancy was shortened to one month.—William Melhado, Sacbee.com, 5 Dec. 2025 Among men and women, there isn’t much of an age-gender gap until women reach their 50s, when their long life expectancies come into play.—Scott Lafee, San Diego Union-Tribune, 2 Dec. 2025 The condition is life-threatening, with a typical life expectancy between 10 and 20 years.—Mrigakshi Dixit, Interesting Engineering, 24 Nov. 2025 See All Example Sentences for life expectancy
: 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
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