Word · Frequency #22493
deciduous
每年落叶的
(of plants and shrubs) shedding leaves at the end of the growing season
- 1.
Describing a part that falls off, or is shed, at a particular time or stage of development.
- 2.
(of plants and shrubs) shedding foliage at the end of the growing season
(指植物和灌木)在生长季结束时落叶的
- 3.
Of or pertaining to trees which lose their leaves in winter or the dry season.
- 4.
(of teeth, antlers, etc.) being shed at the end of a period of growth
(指牙齿、鹿角等)在生长期结束时脱落的
- 5.
Transitory, ephemeral, not lasting.
(指植物和灌木)在生长季结束时落叶的；(指牙齿、鹿角等)在生长期结束时脱落的；非永久性的；[医] 脱落的
In use
Many deciduous trees lose their leaves in autumn.
The forest is home to both deciduous and evergreen species.
This deciduous shrub turns bright red before shedding its leaves.
deciduous teeth
deciduous + noun
deciduous 作定语，直接修饰名词，如 trees、forests。
Deciduous forests are home to many animals.
落叶林是许多动物的家园。
be deciduous
be deciduous 作表语，说明主语是每年落叶的。
Some trees are deciduous, while others are evergreen.
有些树是落叶的，而另一些是常绿的。
Common mistakes
Connections
Collocations
- deciduous trees
- 落叶树
- Most deciduous trees lose their leaves in autumn.大多数落叶树在秋天落叶。
- deciduous forest
- 落叶林
- Deciduous forests are home to many birds and insects.落叶林是许多鸟类和昆虫的栖息地。
- deciduous shrub
- 落叶灌木
- This deciduous shrub turns bright red in the fall.这种落叶灌木在秋天变成鲜红色。
- deciduous teeth
- 乳牙
- A child's deciduous teeth usually begin to fall out at age six.孩子的乳牙通常在六岁左右开始脱落。
Synonyms
- leaf-shedding
- 会落叶的（树木） · 较通俗，常用于日常或科普语境；多作定语，如 leaf-shedding trees；不能用于医学上的“脱落的”义。
Learner notes
Memory Tip
谐音记法：‘地湿’——秋天落叶铺满地，雨后湿漉漉，这就是 deciduous‘每年落叶的’。
Context & Register
语域：formal 常见场景：植物学、园艺 多用于植物学、生物学等学术或书面语境，日常口语中较少出现；口语中更常说 shed leaves。
Pronunciation & Spelling
只有 assiduous /əˈsɪdʒuəs/ 与 deciduous 押韵：二者都以 /ˈsɪdʒuəs/ 结尾。其余 -uous 拼写看似相近，但重读元音或后续辅音不同，如 continuous /kənˈtɪnjuəs/、arduous /ˈɑːrdʒuəs/、strenuous /ˈstrenjuəs/、conspicuous /kənˈspɪkjuəs/、innocuous /ɪˈnɑːkjuəs/。
Dictionary facts from ECDICT, WIKTIONARY.