Pronunciation: (vī-tal'i-tē), [key]
1. exuberant physical strength or mental vigor: a person of great vitality.
2. capacity for survival or for the continuation of a meaningful or purposeful existence: the vitality of an institution.
3. power to live or grow: the vitality of a language.
4. vital force or principle.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.