rejuvenescence

 
Pronunciation: /rɪˌdʒuːvəˈnɛsəns/

noun

[mass noun]
  • the renewal of youth or vitality.
  • Biology the reactivation of vegetative cells, resulting in regrowth from old or injured parts.

Derivatives

rejuvenescent

adjective

Origin:

mid 17th century: from late Latin rejuvenescere (from Latin re- 'again' + juvenis 'young') + -ence