bipyrazineWiktionary 原文英美构词拆解bibi-前缀pyrazinepyrazine词干bi-Two in number. · Having or possessing two of the root word's quality.词源说明From bi- + pyrazine.释义名词noun1(organic chemistry) A bicyclic aromatic heterocycle composed of two pyrazine rings linked by a direct single bond同族词派生词 1bipyrazyl