Meaning of aftertreatment

af•ter•treat•ment

Pronunciation: (af'tur-trēt"munt, äf'-), [key]
— n.
  1. a chemical treatment to which a fabric is subjected immediately after being dyed, for increasing the fastness of the color.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.