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life expectancy

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noun
the probable number of years remaining in the life of an individual or class of persons determined statistically, affected by such factors as heredity, physical condition, nutrition, and occupation.
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Also called expectancy of life.

Origin of life expectancy

First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use life expectancy in a sentence

British Dictionary definitions for life expectancy

life expectancy

noun
the statistically determined average number of years of life remaining after a specified age for a given group of individualsAlso called: expectation of life
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for life expectancy

life expectancy

n.
The number of years that one is expected to live as determined by statistics.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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