backlightPronunciation: /ˈbaklʌɪt/Definition of backlight noun [mass noun] illumination from behind: [as modifier]:the camera offers useful features such as backlight compensation verb (past backlit; past participle backlit or backlighted) [with object] illuminate from behind: (as adjective backlit)a backlit LCD screenDerivatives backlighting noun backlight in other Oxford dictionaries Definition of backlight in the US English dictionary