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separation layer

noun, Botany

abscission layer

noun, Botany
the layer of specialized, cutinized parenchyma cells that develops in the abscission zone, the disintegration of which causes abscission.
Also called separation layer.
Origin of abscission layer
1915-20 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for separation-layer

abscission layer

a layer of parenchyma cells that is formed at the bases of fruits, flowers, and leaves before abscission. As the parenchyma disintegrates, the organ becomes separated from the plant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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