ジアゾニウム塩えんジアゾニウムえんMeanings1noundiazonium saltchemistryTechnical term in organic chemistry; refers to a salt containing a diazonium cation.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.