abscission
abscission[əbˈsɪʃ(ə)n]noun- [mass noun](Botany)the natural detachment of parts of a plant, typically dead leaves and ripe fruit
(植)(枯叶或成熟果实的)脱落
派生abscise[əbˈsvɪz]verb语源- early 17th cent.: from Latin abscissio(n-), from abscindere, from ab- 'off' + scindere 'to cut'
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