noun
stage adaptation; theatrical adaptation
Refers to a work (novel, film, manga, etc.) that has been adapted for the stage.
この小説の舞台化作品が来月上演される。
The stage adaptation of this novel will be performed next month.
人気アニメの舞台化作品のチケットはすぐに売り切れた。
Tickets for the theatrical adaptation of the popular anime sold out quickly.
Compound of 舞台 (stage) + 化 (-ization) + 作品 (work). The exact historical derivation is uncertain, but the word follows a productive pattern for adaptation terms.