I. The place before the scene where the actors appeared, the proscenium; also, in gen., the stage, Plaut. Am. prol. 91; id. Truc. prol. 10, id. Poen. prol. 17: “veteres ineunt proscaenia ludi,” Verg. G. 2, 381: “theatrum et proscaenium ad Apollinis locavit,” Liv. 40, 51; Vitr. 5, 6; Suet. Ner. 12: “proscaenii contabulatio,” App. Flor. 4, p. 359, 1. —
II. Transf., a theatre (post-class.), Claud. Laud. Stil. 2, 403.