deciduousness

deciduous +‎ -ness

• (UK) IPA^(key): /dɪˈsɪdʒʊəsnəs/

deciduousness (uncountable)

1. The state or condition of being deciduous; the quality of trees which lose their leaves in winter or the dry season.
   • 2010, Geoff Williams, Paul Adam, The Flowering of Australia's Rainforests, page 59:

     Worldwide, foliage deciduousness in angiosperms is believed to have arisen in tropical species as a response to periodic drought.

• deciduosity
• deciduous
• deciduously