Definition of lignin
: 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
Recent Examples of lignin from the Web
The lignin, hemicellulose, and other polymers that give the wood structure break down to produce sweet, vanilla notes.
If the smeller determines that the old book smells like almonds, then that could be the result of benzaldehyde, a chemical that forms when lignin, a component of some paper pulp, degrades.
Imitation vanillin extracted from lignin or guaiacol is very standard, rather than distinct.
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First Known Use of lignin
Medical Definition of lignin
: an amorphous polymeric substance related to cellulose that together with cellulose forms the woody cell walls of plants and the cementing material between them
Learn More about lignin
Britannica.com: Encyclopedia article about lignin
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