abscission layer: Meaning and Definition of

abscis'sion lay"er

Pronunciation: [key]
— Bot. Bot.
  1. the layer of specialized, cutinized parenchyma cells that develops in the abscission zone, the disintegration of which causes abscission. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.