IPA: /æbˈsɪʒən/
KK: /æbˈsɪʒən/
The process of a plant naturally losing its leaves, flowers, or fruits, often at a specific area where the separation occurs.
The abscission of leaves in autumn is a natural process that prepares trees for winter.
Abscission is formed from "ab-" (meaning away) and "scindere" (meaning to cut). The word describes the act of cutting away or separating something from a larger whole.
Think of 'cutting away' something ('ab-' means away and 'scindere' means to cut) — that's what abscission means.