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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

First recorded in 1920–25

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

middle lamella in Science

middle lamella

The pectin-rich intercellular material cementing together the primary walls of adjacent plant cells.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.