a, o, d, e, z, y are letters that make 'azo dye'
dye, azo, AZ, Dy are words within 'azo dye'
1 possible definitions for 'azo dye'
Under this definition, azo dye is a noun and has the following properties:
'azo dye' can be a type of dye, dyestuff.
congo red, methyl orange are types of 'azo dye'.