释义 |
di·a·zine \ˈdīəˌzēn, dīˈaz-, -zə̇n\ noun (-s) Etymology: International Scientific Vocabulary di- + az- + -ine 1. : any of three parent compounds C4H4N2 containing a ring composed of four carbon atoms and two nitrogen atoms and distinguished by indication of the positions of the nitrogen atoms or by trivial names: a. : pyridazine b. : pyrimidine c. : pyrazine 2. : any of a large class of derivatives of the three parent diazines |