falling-off or shed at a certain period or phase of development: deciduous antlers; deciduous leaves; deciduous teeth.
Shedding or dropping vegetation after the developing season: deciduous woods.
Not lasting; ephemeral.
Describing part that falls off, or is shed, at a certain time or phase of development.
Of or pertaining to woods which drop their leaves in winter or even the dried out season.
transitory, ephemeral, perhaps not lasting
falling-off, or susceptible to fall or perhaps shed, at a certain season, or a particular phase or period of development, as leaves (except of evergreens) in autumn, or as elements of creatures, eg locks, teeth, antlers, etc.; additionally, losing leaves or parts at specific months, phases, or intervals
(of flowers and bushes) shedding foliage after the growing season
(of teeth, antlers, etc.) being shed after a period of development
Falling or liable to fall, particularly after a definite duration; perhaps not perennial or permanent.
especially— In botany: falling-off at readiness or at the conclusion of the growing season, as petals, leaves, good fresh fruit, etc.: in distinction from fugacious or caducous body organs, which fall after the look of them, and from persistent or permanent, or, as put on leaves, from evergreen. Losing the vegetation on a yearly basis: as, deciduous woods.
In zoology: falling-off at a specific phase of an animal's existence, whilst the hair, horns, and teeth of certain creatures. Dropping certain parts on a regular basis and occasionally, or at particular stages or many years: since, a deciduous pest.