American Heritage® Dictionary of the English Language, Fourth Edition
- n. Any of various red, brown, or yellow acidic or basic dyes derived from amino compounds.
- n. chemistry any of a large number of yellow to red synthetic dyes that contain an azo or diimide (-N=N-) functional group.
- n. any dye containing one or more azo groups
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All the scientific words found in the official EU nomenclature. For the screening I used Vocabgrabber of the Visual Thesaurus.
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