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Definition of Life expectancy

Babylon English Dictionary

average number of years a person can expect to live
Life expectancy Definition from Language, Idioms & Slang Dictionaries & Glossaries
hEnglish - advanced version

life expectancy
n : an expected time to live as calculated on the basis of statistical probabilities

WordNet 2.0

Noun
1. an expected time to live as calculated on the basis of statistical probabilities
(hypernym) anticipation, expectancy
Life expectancy Definition from Business & Finance Dictionaries & Glossaries
Campbell R. Harvey's Hypertextual Finance Glossary
The length of time that an average person is expected to live, which is used by insurance companies to make projections of benefit payouts.
Copyright © 2000, Campbell R. Harvey. All Rights Reserved.
Life expectancy Definition from Social Science Dictionaries & Glossaries
Glossary of Sociology
The number of years a newborn in a particular society can expect to live. Also refers to the number of further years which people at any given age can, on average, expect to live.
Life expectancy Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
Life expectancy is the expected (in the statistical sense) number of years of life remaining at a given age. It is denoted by , which means the average number of subsequent years of life for someone now aged , according to a particular experience. Because life expectancy is an average, a particular person may well die many years before or many years after their "expected" survival. The term "maximum life span" has a quite different meaning. The "median life span" is also a different concept although fairly similar to life expectancy numerically in most developed countries.

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Life expectancy Definition from Medicine Dictionaries & Glossaries
EUFIC Nutrition Glossary
Expected further number of years of life measured at any age.
Copyright © 2006, EUFIC - European Food Information Council. All rights reserved.
Hepatitis Central (TM) Liver Disease Medical Glossary
Longevity, the average length of life of individuals in a population