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[lon-jev-i-tee, lawn-] /lɒnˈdʒɛv ɪ ti, lɔn-/
a long individual life; great duration of individual life:
Our family is known for its longevity.
the length or duration of life:
research in human longevity.
length of service, tenure, etc.; seniority:
promotions based on longevity.
Origin of longevity
1605-15; < Latin longaevitās. See longevous, -ity Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for longevity
  • Here the units of life are depletion, longevity, and unremitting loneliness.
  • But she was popular for her guts, zest for life and sheer longevity.
  • Note also that the longevity of components is not nearly as long as western design and produced alternatives.
  • In the quest for longer life, scientists are trying to find the genes of longevity and bottle their benefits for all.
  • The pharmaceutical industry has long believed that a pill to increase longevity would be the ultimate blockbuster drug.
  • To have lived through all its sunny hours, seems longevity enough.
  • Admiration for his accomplishments, his singularity, and the longevity and diversity of his career intervene.
  • Nothing is systematically or rigorously examined-which is to say that nothing is subjected to the longevity of narrative.
  • The capacity for longevity has not really increased.
  • The retirement age is indexed to longevity for early and normal retirement, which amounts to a benefit cut for early retirees.
British Dictionary definitions for longevity


long life
relatively long duration of employment, service, etc
Derived Forms
longevous (lɒnˈdʒiːvəs) adjective
Word Origin
C17: from Late Latin longaevitās, from Latin longaevus long-lived, from longuslong1 + aevum age
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
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Word Origin and History for longevity

1610s, from Late Latin longaevitatem (nominative longaevitas) "great age, long life," from Latin longaevus "long-lived," from longus (see long (adj.)) + aevum "lifetime, age" (see eon).

Online Etymology Dictionary, © 2010 Douglas Harper
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longevity in Medicine

longevity lon·gev·i·ty (lŏn-jěv'ĭ-tē)
Duration of an individual life beyond the norm for the species.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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