ā​qín

-azine

Definitions

ā​qín

-azine; heterocyclic compound containing nitrogen in their ring such as pyridine 吡啶[bǐ​dìng] C5H5N, pyrazine 噠嗪|哒嗪[dā​qín] C4H4N2 or pyrimidine 嘧啶[mì​dìng] C4H4N2

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