life expectancy

noun
Updated on: 19 Nov 2017

Definition of life expectancy

: the average life span of an individual

Examples of life expectancy in a Sentence

  1. improvements in diet that have resulted in greater life expectancy for many people

  2. calculating the life expectancies of different social groups

Recent Examples of life expectancy from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'life expectancy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of life expectancy

1848


LIFE EXPECTANCY Defined for English Language Learners

life expectancy

noun

Definition of life expectancy for English Language Learners

  • : the average number of years that a person or animal can expect to live


Medical Dictionary

life expectancy

noun

medical Definition of life expectancy

: an expected number of years of life based on statistical probability

Law Dictionary

life expectancy

noun

legal Definition of life expectancy

: the average life span of an individual

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