abscissin
n. C2 Proficiency ab·scissin
n. a chemical substance that helps plants grow and change shape. It is used to help fruits ripen or to make leaves fall off a tree.
n. a plant hormone that promotes the shedding of leaves and the ripening of fruits. Often used in agricultural contexts to control the timing of harvests.
The farmer used abscissin to help the apples fall from the tree.
By applying abscissin to the citrus groves, the growers ensured that the fruit would be ready for market at the same time.
The natural production of abscissin in the plant is triggered by changes in light and temperature, signaling the end of the growing season and the beginning of dormancy.
From abscission + -in.