abscission
/æbˈsɪʒən/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。
派生词
abscise
/æbˈsaɪz/ verb词源
early 17th cent.: from Latin abscissio（n-）, from abscindere, from ab- 'off ' + scindere 'to cut'.