Definition of juvenescent in US English:

juvenescent

adjective

formal
  • See juvenescence

    • ‘Both juvenescent and senescent fish have functional ovotestes.’
    • ‘Such juvenescent films form when the evaporation of water is prevented and that of a minor but highly surface-active component is favored.’

Pronunciation

juvenescent

/ˌdʒuvəˈnɛs(ə)nt//ˌjo͞ovəˈnes(ə)nt/