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Related to lignin: hemicellulose
A complex polymer, the chief noncarbohydrate constituent of wood, that binds to cellulose fibers and hardens and strengthens the cell walls of plants.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Biochemistry) a complex polymer occurring in certain plant cell walls making the plant rigid
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
an organic substance that, with cellulose, forms the chief part of woody tissue.
[1815–25; < Latin lign(um) wood + -in1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
A complex organic compound that binds to cellulose fibers and hardens and strengthens the cell walls of plants. It is the chief noncarbohydrate constituent of wood.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||lignin - a complex polymer; the chief constituent of wood other than carbohydrates; binds to cellulose fibers to harden and strengthen cell walls of plants|
polymer - a naturally occurring or synthetic compound consisting of large molecules made up of a linked series of repeated simple monomers
wood - the hard fibrous lignified substance under the bark of trees
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