| aza- or (before a vowel) az- | |
| —combining form | |
| denoting the presence of nitrogen, esp a nitrogen atom in place of a -CH group or an -NH group in place of a -CH2 group: azathioprine | |
| [C20: from | |
| az- or (before a vowel) az- | |
| —combining form | |
| [C20: from | |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| azo- or (before a vowel) az- | |
| —combining form | |
| indicating the presence of an azo group: azobenzene | |
| [from French azote nitrogen, from Greek azōos lifeless, from | |
| az- or (before a vowel) az- | |
| —combining form | |
| [from French azote nitrogen, from Greek azōos lifeless, from | |
| azo- or az-
A prefix that means "containing an azo group attached at both ends to other groups," as in the compound azobenzene. |