Lexic.us

Definition of Cell wall

1. Noun. A rigid layer of polysaccharides enclosing the membrane of plant and prokaryotic cells; maintains the shape of the cell and serves as a protective barrier.

Definition of Cell wall

1. Noun. (cytology) A thick, fairly rigid, layer formed around individual cells of bacteria, Archaea, fungi, plants, and algae (but not animals and other protists which generally have cell membranes without cell walls). The cell wall is external to the cell membrane and serves a structural function helping the cell maintain its shape and protecting the cell from damage. ¹

¹ Source: wiktionary.com

Medical Definition of Cell wall

1. 1. Extracellular material serving a structural role. 2. In plants the primary wall is pectin rich, the secondary wall mostly composed of cellulose. 3. In bacteria, cell wall structure is complex: the walls of gram-positive and gram-negative bacteria are distinctly different. Removal of the wall leaves a protoplast or spheroplast. (07 Apr 1998)

Lexicographical Neighbors of Cell Wall

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