cell wall

noun

: the usually rigid nonliving permeable wall that surrounds the plasma membrane and encloses and supports the cells of most plants, bacteria, fungi, and algae see cell illustration

Examples of cell wall in a Sentence

Recent Examples on the Web
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Authorities say surveillance footage of the cell showed that the legal papers were neatly stacked and no human excrement lined the cell walls. Mia Cathell, The Washington Examiner, 24 Mar. 2026 For example, accurate calorie counts are particularly difficult to calculate for plant foods, which have cell walls that can be heard for teeth to break through, since chewing is the first phase of digestion, Moyer said. Kaitlin Sullivan, NBC news, 22 Mar. 2026 Your enzymes can't work on carbs when they're protected by the cell wall. Michaeleen Doucleff, NPR, 16 Feb. 2026 The fatter the fish, such as salmon and trout, the more prone the cell walls can be affected or damaged by ice crystals due to their softer flesh. Lauren David, Southern Living, 15 Feb. 2026 See All Example Sentences for cell wall

Word History

First Known Use

1840, in the meaning defined above

Time Traveler
The first known use of cell wall was in 1840

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Cite this Entry

“Cell wall.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cell%20wall. Accessed 27 Mar. 2026.

Kids Definition

cell wall

noun
: the firm nonliving layer that encloses and supports the cells of most plants, bacteria, fungi, and algae

Medical Definition

cell wall

noun
: the usually rigid nonliving permeable wall that surrounds the plasma membrane and encloses and supports the cells of most plants, bacteria, fungi, and algae

More from Merriam-Webster on cell wall

Britannica.com: Encyclopedia article about cell wall

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