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2017 Word of the Year

azo dye

noun, Chemistry.
1.
any of a large class of dyes containing one or more azo groups.
Origin of azo dye
1880-1885
First recorded in 1880-85
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Value for azo

12
12
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