o|de|um

o|de|um «oh DEE uhm», noun, plural o|de|a «oh DEE uh».

1. a theater, hall, or other large enclosed area, used for musical or dramatic performances.

2. (in ancient Greece and Rome) a roofed building in which vocal and instrumental music was performed.

╂[< Late Latin ōdēum < Greek ōideîon place for musical performances, related to ōid song; see etym. under ode (Cf. ↑ode)]