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Definition of Middle lamella
1. Noun. (biology) The intercellular material, composed mostly of pectin, that facilitates adhesion between neighbouring plant cells ¹
¹ Source: wiktionary.com
Medical Definition of Middle lamella
1. First part of the plant cell wall to be formed, laid down in the phragmoplast during cell division as the cell plate. Subsequently makes up the central part of the double cell wall that separates two adjacent cells, cementing together the two primary walls. Rich in pectin and relatively poor in cellulose. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)