AZO- Meaning of AZO- in English [ 'eɪzəʊ ]■ prefix Chemistry containing two adjacent nitrogen atoms between carbon atoms.Originfrom obs. azote 'nitrogen', from Fr., from Gk a- 'without' + zōē 'life'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004