Definition of juvenescence in US English:

juvenescence

noun

formal
  • The state or period of being young.

    ‘the characters she is reconstructing spring from her own juvenescence’
    • ‘Gyllenhaal’s juvenescence is the magic that makes even Graysmith’s most mundane actions sparkle.’
    • ‘A silhouette portrait of Talbot as a boy of seven, drawn in 1807 by an unknown hand, opens this monumental book about the birth and juvenescence of a medium.’
    • ‘I believe that the happiest individuals are those who have reclaimed their juvenescence, or the power to grow young.’
    early years, early life, young days, teens, teenage years, adolescence, young adulthood, boyhood, girlhood, childhood
    View synonyms

Origin

Early 19th century: from Latin juvenescent- ‘reaching the age of youth’, from the verb juvenescere, from juvenis ‘young’.

Pronunciation

juvenescence

/ˌdʒuvəˈnɛsəns//ˌjo͞ovəˈnesəns/