Dx in English dictionary Dx Meanings and definitions of "Dx" abbreviation diagnosis abbreviation (mathematics) differential with respect to the variable x; also written D x and dx. more dx Meanings and definitions of "Dx" noun (medicine, mathematics) Alternative form of [i]Dx[/i]. more DX Sample sentences with "Dx" Declension Stem Try again Available translations Breton Cornish Croatian Estonian French Irish Persian Polish Spanish Authors