1. noun /ˈɔː.təm,ˈɑ.təm/
Traditionally the third of the four seasons, when deciduous trees lose their leaves; typically regarded as being from September 21 to December 20 in parts of the Northern Hemisphere, and the months of March, April and May in the Southern Hemisphere.
See Also: Adonis autumnalis, autumnal, autumnal equinox, autumnian, autumnity, Colchichum autumnale, Coregonus autumnalis, Coregonus autumnalis migratorius, Dendrocygna autumnalis, Epirrita autumnata, Galerina autumnalis, Helenium autumnale, Leontodon autumnale, Leontodon autumnalis, Leptospira autumnalis, Leptus autumnalis, Musca autumnalis, Neotrombicula autumnalis, Plegadis autumnalis, Scilla autumnalis, Trombicula autumnalis
2. adjective /ˈɔː.təm,ˈɑ.təm/
Of or relating to autumn.
autumn leaves
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