Meaning of lignin sulfonate

lig'nin sul'fonate

Pronunciation: (lig"nu-sul'fu-nāt"). [key]
— Chem. Chem.
  1. a brown powder consisting of a sulfonate salt made from waste liquor of the sulfate pulping process of soft wood: used in concrete, leather tanning, as an additive in oil-well drilling mud, and as a source of vanillin. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.