ジアゾニウムじあぞにうむMeanings1noundiazoniumchemistryTechnical term in organic chemistry referring to the diazonium cation or its salts.ジアゾニウム塩えんはアゾ染せん料りょうの合ごう成せいに使つかわれる。Diazonium salts are used in the synthesis of azo dyes.