[F.; lit. a vessel for bathing in, f. baigner to bathe; also as in Eng.] A box at the theater on the same level as the stalls.
1873. Browning, Red Cott. Nt.-cap, 984. Should one display Ones robe a trifle oer the baignoire-edge.
1883. Harpers Mag., Nov., 884/1. The twelve baignoirs are left at the disposal of the manager.