Definition of azine:
(n) :
(organic chemistry) Any of a class of heterocyclic compounds containing a nitrogen atom as part of the ring structure, particularly those with six-membered aromatic rings (e.g., pyridine) or fused-ring systems.
(n) :
(organic chemistry) Any of a class of organic compounds, having the general formula R₂C=NN=CR₂, produced by the action of a carbonyl compound with hydrazine.