DIAGRAMMATIC Meaning of DIAGRAMMATIC in English diagrammatic BrE AmE ˌda ɪ ‿ə ɡrə ˈmæt ɪk ◂ AmE \ -ˈmæt̬-▷ diagrammatic|al ə l▷ diagrammatic|ally ə l‿i Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012