Meaning of triarylmethane dye

tri•ar•yl•meth'ane dye"

Pronunciation: (trī-ar"il-meth'ān), [key]
— Chem. Chem.
  1. any of the class of dyes containing three aryl groups attached to a central carbon atom: used chiefly for dyeing cotton, wool, and silk.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.