lignin
[ lig-nin ]
/ ˈlɪg nɪn /
noun
Botany.
an organic substance that, with cellulose, forms the chief part of woody tissue.
Papermaking.
impure matter found in wood pulp.
Words nearby lignin
ligneous,
ligni-,
lignicolous,
ligniform,
lignify,
lignin,
lignin sulfonate,
lignite,
lignivorous,
ligno-,
lignocaine
Example sentences from the Web for lignin
British Dictionary definitions for lignin
lignin
/ (ˈlɪɡnɪn) /
noun
a complex polymer occurring in certain plant cell walls making the plant rigid
Scientific definitions for lignin
lignin
[ lĭg′nĭn ]
A complex organic compound that binds to cellulose fibers and hardens and strengthens the cell walls of plants. Lignin is a polymer consisting of various aromatic alcohols, and is the chief noncarbohydrate constituent of wood.