Ligninnoun
(organic compound) A complex non-carbohydrate aromatic polymer present in all wood.
Ligninnoun
A substance characterizing wood cells and differing from cellulose in its conduct with certain chemical reagents.
Ligninnoun
a complex polymer; the chief non-carbohydrate constituent of wood; binds to cellulose fibers to harden and strengthen cell walls of plants
Lignin
Lignin is a class of complex organic polymers that form key structural materials in the support tissues of most plants. Lignins are particularly important in the formation of cell walls, especially in wood and bark, because they lend rigidity and do not rot easily.
Suberinnoun
A waxy material found in the cell walls of cork and similar plants
Suberinnoun
A material found in the cell walls of cork. It is a modification of lignin.
Suberin
Suberin, cutin and lignins are complex, higher plant epidermis and periderm cell-wall macromolecules, forming a protective barrier. Suberin, a complex polyester biopolymer, is lipophilic, and composed of long chain fatty acids called suberin acids, and glycerol.