azo dye

Origin of azo dye

First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for azo dye

azo dye

noun
  1. any of a class of artificial dyes that contain the azo group. They are usually red, brown, or yellow and are obtained from aromatic amines
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