di•az•oPronunciation: (dī-az'ō, -ā'zō), [key]
containing the diazo group.
a combining form with the meaning “diazo group,” used in the formation of compound words: diazomethane. Also, esp. before a vowel,diaz-.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.