Akademik

a theater arranged with seats around at least three sides of the stage

1. : a theater having the acting area in the center of the auditorium with the audience seated on all sides of the stage — called also theater-in-the-round

2. : the style or method of staging plays in an arena theater

a theater with seats arranged on at least three sides around a central stage. Also called theater-in-the-round.

[1940-45]

arena theater or arena stage,

= theater-in-the-round. (Cf. ↑theater-in-the-round)