sulfonation: Meaning and Definition of

sul•fo•na•tion

Pronunciation: (sul"fu-nā'shun), [key]
— n. Chem.
  1. the process of attaching the sulfonic acid group, –SOH, directly to carbon in an organic compound.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.