noun
proscenium stage
A stage framed by a proscenium arch, separating the audience from the performance space. Used in theater and performing arts contexts.
この劇場は額縁舞台を採用している。
This theater uses a proscenium stage.
Compound of 額縁 (がくぶち, 'picture frame') and 舞台 (ぶたい, 'stage'), referring to the framed appearance of the stage opening.