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middle lamella

noun, Botany
the layer of cementing material, composed of pectates and similar substances, between the walls of adjacent cells.
Origin of middle lamella
1920-25 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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middle lamellae in Science
middle lamella  
The pectin-rich intercellular material cementing together the primary walls of adjacent plant cells.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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