backlight /ˈbæk.laɪt/noun 5verb 1forms 4 noun5 •Light shining from a source behind the object of interest or attention.The backlight from the sunset cast the pier and the crowd in silhouette.Egg candling uses backlight to look for chick embryos. •Light that is behind a photographic subject.If I do use backlight, it's not to separate the subject from the background; I use it to set a psychological mood, or to create a look. — 2006 •A spotlight that illuminates a photographic subject from behind. •A light attached to an LCD display. •The rear window of a motor car. verb1 •To illuminate something from behind.It offers few subtleties, but those can be effective, as when the chorus is backlighted in the rear of the auditorium to produce an ominous play of shadows onstage. — 2007 formsbacklighted · backlit · backlighting · backlights