from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Long life; great duration of life: His longevity vexed his heirs.
  • n. Length or duration of life: comparing the longevities of the two peoples.
  • n. Long duration or continuance, as in an occupation: had unusual longevity in the company; her longevity as a star.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The quality of being long-lasting, especially of life

from the GNU version of the Collaborative International Dictionary of English

  • n. Long duration of life; length of life.

from The Century Dictionary and Cyclopedia

  • n. Long life; unusually prolonged life or existence.
  • n. Length or duration of life; term of existence: as, statistics of longevity; the average longevity of the race.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the property of being long-lived
  • n. duration of service


Late Latin longaevitās, from Latin longaevus, ancient : longus, long; see del-1 in Indo-European roots + aevum, age; see aiw- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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