Definition of virescence in US English:

virescence

noun

literary
  • See virescent

    • ‘Proliferation of shoots was observed in one of the samples of periwinkle and, virescence was showed by the other one.’
    • ‘Vinca virescence is a phytoplasma that causes symptoms of virescence, phyllody and witches’ broom.’

Pronunciation

virescence

/vəˈresns/