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Meaning of xanthene dye

xan'thene dye'

Pronunciation: [key]
— Chem. Chem.
  1. any of a group of dyes having a molecular structure related to that of xanthene in which the aromatic (CH) groups are the chromophore.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.