diphenylamine Syllabification: (di·phen·yl·a·mine)Pronunciation: /dīˈfenl-əˌmēn, -ˈfē-/Definition of diphenylamine noun Chemistry a synthetic crystalline compound with basic properties, used in making azo dyes and as an insecticide and larvicide. Chemical formula: (C6H5)2NH diphenylamine in other Oxford dictionaries Definition of diphenylamine in the British & World English dictionary
