DICT.TW Dictionary Taiwan

 de·cid·u·ous /dɪˈsɪʤəwəs/
 (a.)每年落葉的,非永久性的

 de·cid·u·ous /dɪˈsɪʤəwəs/ 形容詞
 脫落的(牙科慣用),蛻膜的

 De·cid·u·ous a.  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.
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 deciduous
      adj 1: (of plants and shrubs) shedding foliage at the end of the
             growing season [ant: evergreen]
      2: (of teeth, antlers, etc.) being shed at the end of a period
         of growth; "deciduous teeth"