Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Illumination(noun) the act of illuminating, or supplying with light; the state of being illuminated. 2  Illumination(noun) festive decoration of houses or buildings with lights. 3  Illumination(noun) adornment of books and manuscripts with colored illustrations.
Harley Quinn Already Getting A Spinoff Movie, With An Important Twist. Harley Quinn has been a staple in DC Comics staple since she was introduced in Batman: The Animated Series, and this August, sheâs finally making her theatrical debut in Suicide Squad, played by Margot Robbie.
Harley Quinn first appeared on Batman: The Animated Series in the episode, The Jokers Favor. She was created by Paul Dini and Bruce Timm and inspired by Arleen Sorkin and one of her characters Harlequin. Harleen Quinzel was a former psychiatrist at Arkham Asylum. Her patient was the Joker and he told her all his secrets, manipulating her into falling in love with the Clown Prince of Crime. Harleen Quinzel adopted the name Harley Quinn and broke the Joker out of the Asylum and became his assistant.