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lignin: Meaning and Definition of

lig•nin

Pronunciation: (lig'nin), [key]
— n.
  1. an organic substance that, with cellulose, forms the chief part of woody tissue.
  2. impure matter found in wood pulp.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
lignify lignin sulfonate
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