a colorless, crystalline chemical compound, (CH)NH, used as a stabilizer of explosives and propellants, as a test for nitric acid, and in making dyes
Origin:
diphenyl + amine
See diphenylamine in American Heritage Dictionary 4
noun
A colorless crystalline compound, (C6H5)2NH, used as a stabilizer for plastics and in the manufacture of dyes, explosives, pesticides, and pharmaceuticals.