Shedding leaves annually, typically used to describe trees or shrubs that lose their leaves in the fall. The deciduous trees in the park create a beautiful carpet of leaves every autumn.
Not permanent; transitory or temporary. The deciduous nature of the project meant that it would only last for a few months.
Relating to bodily parts such as teeth, antlers, or wings that are shed at a particular stage of development. Children lose their deciduous teeth before their permanent set grows in.