Dictionary
lon•gev•i•ty
Pronunciation: (lon-jev'i-tē, lôn-), [key]—
n.
1. a long individual life; great duration of individual life:
Our family is known for its longevity.
2. the length or duration of life:
research in human longevity.
3. length of service, tenure, etc.; seniority:
promotions based on longevity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.