[ rɪˌdʒu:və'nɛsəns ]
■ noun
1》 the renewal of youth or vitality.
2》 Biology the reactivation of vegetative cells, resulting in regrowth from old or injured parts.
Derivatives
rejuvenescent adjective
Origin
C17: from late L. rejuvenescere (from L. re- 'again' + juvenis 'young') + -ence .