| 单词 | deciduous | 
| 释义 | Word Frequency deciduous(dɪˈsɪdjʊəs) adjective 1.  (of trees and shrubs) shedding all leaves annually at the end of the growing season and then having a dormant period without leavesCompare evergreen (sense 1) 2.  (of antlers, wings, teeth, etc) being shed at the end of a period of growth  3.  rare  impermanent; transitory Compare evergreen (sense 2) Derived formsdeciduously (deˈciduously) adverb deciduousness (deˈciduousness)  noun Word originC17: from Latin dēciduus falling off, from dēcidere to fall down, from cadere to fall | 
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