longevity

[ lon-jev-i-tee, lawn- ]
/ lɒnˈdʒɛv ɪ ti, lɔn- /

noun

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

From the Latin word longaevitās, dating back to 1605–15. See longevous, -ity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for longevity

British Dictionary definitions for longevity

longevity
/ (lɒnˈdʒɛvɪtɪ) /

noun

long life
relatively long duration of employment, service, etc

Derived forms of longevity

longevous (lɒnˈdʒiːvəs), adjective

Word Origin for longevity

C17: from Late Latin longaevitās, from Latin longaevus long-lived, from longus long 1 + 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

Medical definitions for longevity

longevity
[ lŏn-jĕvĭ-tē ]

n.

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.