Definition of understory in US English:

understory

(British understorey)

nounPlural understories

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

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

Pronunciation

understory

/ˈəndərˌstôrē//ˈəndərˌstɔri/