di.a.zine
n.（名词）A compound containing a benzene ring in which two of the carbon atoms have been replaced by nitrogen atoms, especially any of three isomers having the composition C4H 4N 2. 二嗪：一种含有一个苯环，其中两个碳原子被氮原子取代，尤其是有这种组成的C4H 4N 2的三种同分异构体的任一个
来源：di- di-az(o)- az(o)--ine 2-ine2
