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triarylmethane dye

[trahy-ar-il-meth-eyn]
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noun Chemistry.
  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.

Origin of triarylmethane dye

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018