cell wall

[ sel wawl ]

Phonetic (Standard)IPA

noun

, Biology.

the definite boundary or wall that is part of the outer structure of certain cells, as a plant cell.

cell wall

the outer layer of a cell, esp the structure in plant cells that consists of cellulose, lignin, etc, and gives mechanical support to the cell

cell wall

The outermost layer of cells in plants, bacteria, fungi, and many algae that gives shape to the cell and protects it from infection. In plants, the cell wall is made up mostly of cellulose, determines tissue texture, and often is crucial to cell function.
Compare cell membrane

cell wall

The rigid outer covering of a typical plant cell , composed mainly of cellulose and lying outside the cell membrane . Animal cells do not have cell walls.

It is the cell walls that give plant stems and wood their stiffness.

First recorded in 1840–50

In my cell, as in the others, there was a narrow iron cot, which could be folded and propped up to the cell wall.

Parachromophorous Bacteria: in which the pigment is stored in the cell wall of the organism.

A thin cell-wall encloses the granular protoplasm, in which vacuoles and sometimes a nucleus may be noted.

Here the conjugating cells swim free in water; they have no cell-wall, and move actively by cilia.

Two contiguous cells of two parallel filaments push each a little projection from its cell-wall toward the other.

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