AZOLE

add. ·noun any of a large class of compounds characterized by a five-membered ring which contains an atom of nitrogen and at least one other noncarbon atom (nitrogen, oxygen, sulphur). the prefixes furo-, thio, and pyrro- are used to distinguish three subclasses of azoles, which may be regarded as derived respectively from furfuran, thiophene, and pyrrol by replacement of the ch group by nitrogen; as, furo-monazole. names exactly analogous to those for the azines are also used; as, oxazole, diazole, ·etc.