the radical -NO2 or any compound containing it (such as a salt or ester of nitrous acid)
nitrite详细解释
ni.trite n.（名词）The univalent radical NO2 or a compound containing it, such as a salt or an ester of nitrous acid. 亚硝酸根，亚硝酸盐或酯：以一价的根NO2为特征或含有此根的化合物，如亚硝酸盐或酯
