deciduou

a. [ L. deciduus, fr. dec&unr_;dere to fall off; de- + cadere to fall. See Chance. ] (Biol.) Falling off, or subject to fall or be shed, at a certain season, or a certain stage or interval of growth, as leaves (except of evergreens) in autumn, or as parts of animals, such as hair, teeth, antlers, etc.; also, shedding leaves or parts at certain seasons, stages, or intervals; as, deciduous trees; the deciduous membrane. [ 1913 Webster ]