Definition of understorey in English:

understorey

noun

Ecology
  • A layer of vegetation beneath the main canopy of a forest.

    ‘a substantial understorey of shrubs and small trees’
    [as modifier] ‘the presence of understorey vegetation and leaf litter’
    • ‘The understorey in the forest depends on the type of trees growing there.’
    • ‘We had not previously examined this area because of the denseness of the understorey.’
    • ‘The understorey in the ancient woodland is mainly hazel stools.’
    • ‘There are virtually no shrubs left to form an understorey.’

Pronunciation:

understorey

/ˈʌndəstɔːri/