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1. (n.) lignin
an organic substance that, with cellulose, forms the chief part of woody tissue.
Etymology: (1815–25; < L
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| Definition of 'Lignin' |
Princeton's WordNet |
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1. (noun) lignin
a complex polymer; the chief constituent of wood other than carbohydrates; binds to cellulose fibers to harden and strengthen cell walls of plants
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Webster Dictionary |
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1. (noun) Lignin
a substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents
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| Definition of 'Lignin' |
U.S. National Library of Medicine |
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1. Lignin
The most abundant natural aromatic organic polymer found in all vascular plants. Lignin together with cellulose and hemicellulose are the major cell wall components of the fibers of all wood and grass species. Lignin is composed of coniferyl, p-coumaryl, and sinapyl alcohols in varying ratios in different plant species. (From Merck Index, 11th ed)
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Definitions of Lignin 
