English Dictionary

abscission layer

/æbˈsɪ.ʃn̩ ˈleɪ.ɚ/

noun

(botany) A layer of cells in a plant that differ from those above and below, and contain abundant starch and dense cytoplasm, which upon disorganization, begin the process of abscission, or the natural separation of the leaf from the rest of the plant.

The abscission layer is responsible for the detachment of leaves from the tree.

意味（1）

(botany) A layer of cells in a plant that differ from those above and below, and contain abundant starch and dense cytoplasm, which upon disorganization, begin the process of abscission, or the natural separation of the leaf from the rest of the plant.