di.a.zine

n.（名詞）
A compound containing a benzene ring in which two of the carbon atoms have been replaced by nitrogen atoms, especially any of three isomers having the composition C4H 4N 2.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：一種含有一個苯環(huán)，其中兩個碳原子被氮原子取代，尤其是有這種組成的C4H 4N 2的三種同分異構體的任一個

來源：
di-
di-
az(o)-
az(o)-
-ine 2
-ine2