Definition of lignin

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Lignin (n.) A substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents.

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Cellulose :: Cellulose (n.) The substance which constitutes the essential part of the solid framework of plants, of ordinary wood, linen, paper, etc. It is also found to a slight extent in certain animals, as the tunicates. It is a carbohydrate, (C6H10O5)n, isomeric with starch, and is convertible into starches and sugars by the action of heat and acids. When pure, it is a white amorphous mass. See Starch, Granulose, Lignin..
Lignone :: Lignone (n.) See Lignin.
Lignireose :: Lignireose (n.) See Lignin.
Medullin :: Medullin (n.) A variety of lignin or cellulose found in the medulla, or pith, of certain plants. Cf. Lignin, and Cellulose..
Lignification :: Lignification (n.) A change in the character of a cell wall, by which it becomes harder. It is supposed to be due to an incrustation of lignin..
Suberite :: Suberin (n.) A material found in the cell walls of cork. It is a modification of lignin.
Sclerogen :: Sclerogen (n.) The thickening matter of woody cells; lignin.
Lignin :: Lignin (n.) A substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents.
Maligning :: Maligning (p. pr. & vb. n.) of Malig.
Lignose :: Lignose (n.) See Lignin.
Xylogen :: Xylogen (n.) Lignin.
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