: an amorphous polymer related to cellulose that provides rigidity and together with cellulose forms the woody cell walls of plants and the cementing material between them
Examples of lignin in a Sentence
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One form, palladium oxide (PdO), is responsible for breaking the carbon–oxygen bonds in lignin.
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Rupendra Brahambhatt, Interesting Engineering, 29 Mar. 2026
This stage determines the biocellulose content of the paper, including hemicellulose, cellulose, and lignin, as these components directly impact the paper’s adhesive properties.
—Etiido Uko
march 28, New Atlas, 28 Mar. 2026
The first is flowers, the second a molecule, lignin.
—David George Haskell, Big Think, 27 Mar. 2026
Flaxseed is rich in lignins — plant compounds studied for their cancer-fighting properties.
—Bestreviews, Mercury News, 27 Jan. 2026
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Rupendra Brahambhatt, Interesting Engineering, 29 Mar. 2026
This stage determines the biocellulose content of the paper, including hemicellulose, cellulose, and lignin, as these components directly impact the paper’s adhesive properties.
—Etiido Uko
march 28, New Atlas, 28 Mar. 2026
The first is flowers, the second a molecule, lignin.
—David George Haskell, Big Think, 27 Mar. 2026
Flaxseed is rich in lignins — plant compounds studied for their cancer-fighting properties.
—Bestreviews, Mercury News, 27 Jan. 2026
See All Example Sentences for lignin
Cite this Entry
“Lignin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lignin. Accessed 2 Apr. 2026.
Copy CitationKids Definition
lignin
noun
lig·nin
ˈlig-nən 
: a substance related to cellulose that occurs in the woody cell walls of plants and in the cementing material between them
Medical Definition
lignin
noun
lig·nin
ˈlig-nən
: an amorphous polymeric substance related to cellulose that together with cellulose forms the woody cell walls of plants and the cementing material between them
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