polyazo

adjective

poly·​azo ¦pä-lē-¦ā-(ˌ)zō 

-¦a-

of a dye

: containing multiple azo groups in the molecule

… the aqueous ink has a polyazo dye containing at least two azo groups …

—US Federal News, 4 Oct. 2006

Word History

First Known Use

1893, in the meaning defined above

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