1. of, relating to, or containing the azo group (a chemical group consisting of two nitrogen atoms bonded together, used in dyes and other compounds)
Usage: chemistry; technical

Examples

• Azo dyes are widely used in the textile industry to color fabrics.
• The chemist synthesized a new azo compound for the research project.
• Many food colorings are azo dyes, though some have been restricted in certain countries.
• The azo group is characterized by a double bond between two nitrogen atoms.