English dictionary
lignin
/'l/I/gn/I/n/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
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a complex polymer; the chief constituent of wood other than carbohydrates; binds to cellulose fibers to harden and strengthen cell walls of plants
Source: WordNet 3.0
-
A substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents.
Source: webster1913