azo

¹

[ az-oh, ey-zoh ]

adjective

, Chemistry.

1. containing the azo group.

azo-

²

1. a combining form used in the formation of compound words, especially names of chemical compounds containing nitrogen or the azo group:

   azobenzene.

azo-

¹

combining_form

1. indicating the presence of an azo group

   azobenzene

azo

²

/ ˈæ-; ˈeɪzəʊ /

adjective

1. of, consisting of, or containing the divalent group -N:N- See also diazo

   an azo group or radical

azo–

¹

1. A prefix that means “containing an azo group attached at both ends to other groups,” as in the compound azobenzene.

azo

²

/ ăz′ō,ā′zō /

1. Containing two nitrogen atoms joined by a double bond, with each nitrogen atom attached to another group.

Word History and Origins

Origin of azo¹

First recorded in 1875–80; independent use of azo-

Origin of azo²

< Greek ázō ( os ) without life, equivalent to a- a- ⁶ + zō- zo-

Word History and Origins

Origin of azo¹

from French azote nitrogen, from Greek azōos lifeless, from a- ¹+ zōē life

Origin of azo²

independent use of azo-

Example Sentences

The next day, I was able to get on antibiotics and AZO pills to relieve the discomfort.

From Salon

But some of the chemicals involved, such as azo dyes, contain materials linked to cancer and other harmful effects.

From Scientific American

Dyes that contain it, along with other so-called “azo” dyes, are banned from import by the European Union.

From Salon

Dyes that contain it, along with other so-called “azo” dyes, are banned from import by the European Union.

From Scientific American

But design is just one element of Cornejo’s process: She is working toward eliminating waste from her industry, in part by making her collections, 84 percent of which are produced in N.Y.C., with mills that have eliminated the use of chemicals such as phthalates and certain azo dyes.

From New York Times