吖嗪 [－－]

Jyutping aa1 ceon4
Pinyin ā qín

Definitions (CC-CEDICT)
  1. -azine
  2. heterocyclic compound containing nitrogen in their ring such as pyridine 吡啶[bi3 ding4] C5H5N, pyrazine 噠嗪|哒嗪[da1 qin2] C4H4N2 or pyrimidine 嘧啶[mi4 ding4] C4H4N2
Definitions (Wiktionary)
  1. noun
    azine