abscission
/æbˈsɪʒən/ 3the separation of leaves, branches, flowers, and bark from plants by the formation of an abscission layer 用隔层分离枝、叶、花和树皮
noun [具体名词]（枯叶或成熟果实的）脱落；用隔层分离枝、叶、花和树皮
An abscission zone occurs at the base of the organ.
脱落区发生在器官基部的某一特化的区域。
单词造句:
- 网友用“Abscission”造句精选
- The roof abscission layer is the biggest security hidden danger in bolting support tunnel. 顶板离层是锚杆支护巷道最大的安全隐患之一。
- For conifers which do not form an abscission layer at the base of the cone, shakers have been partially or completely unsuccessful. 对于球果基部不能形成脱离层的针叶树，摇树机的作用不大，或者完全不起作用。