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cell wall

cell wall

5 3.6
A hard layer around the cells of plants, fungi, and some bacteria that gives support and protection
  • noun
  • /sɛl wɔl/
  • Specialized
translation icon : pared celular
  • They can't break down the cellulose cell wall of the grass they eat or the plants they eat without the fungi in their gut that do it for them.
  • fungal cell wall
  • mycobacterial cell wall
  • cell wall components

It's only for the fact that plants have cell walls, living cell walls that are filled with water.

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Examples

  • Because what calcium does is calcium works with the plant to strengthen the cell walls of the plant.

  • Their Hardy spores sport thick cell walls that allow them to survive extreme temperatures.

  • We're going to look at the cell wall, OK?

  • The cell wall is thick.

  • So the cell wall has this fiber reinforced structure.

  • So the bacterium is using a rigid cell wall to protect itself from the influx of water.

  • As tomatoes ripen, their cell walls go through several changes generated by many enzymes.

    Academic text (1998)
  • Endotoxin is a structural component found in the outer cell wall of Gram-negative bacteria.

    Academic text (2004)
  • Mycobacteria are slow-growing aerobic bacteria that have thick, wax-like, almost impenetrable cell walls.

    Academic text (2005)
  • The cell wall provides structural support and protection to plant cells.

Surface Forms

cell wall singular
cell walls plural

Morphology

cell + wall

The compound 'cell wall' is compositionally transparent: it denotes a 'wall' associated with a 'cell', so a B1 learner who knows 'cell' and 'wall' can infer a rigid layer surrounding the cell that provides structural support and protection. This formation is cross-linguistically common (e.g., French 'paroi cellulaire', Spanish 'pared celular') and follows standard noun+noun composition rather than an idiomatic shift, so it is readily predictable.

Etymology

Cell wall comes from the simple image of a wall around a cell. Like a house wall that gives shape and keeps things out, the cell wall is a hard outer layer around plants, fungi, and some bacteria, so it gives 'support' and 'protection' and helps keep the cell's shape.