[L., neut. sing. of sūdātorius: see next and -ORIUM.] A room in which hot-air or steam baths are taken to produce sweating; a sweating-room (esp. Rom. Antiq.).
1756–7. trans. Keysler’s Trav. (1760), III. 421. A Sudatorium has also been built here, the effect of which is caused by the steam of the water.
1820. T. S. Hughes, Trav. Sicily, I. iii. 74. A sudatorium, or sweating-room.
1835. Penny Cycl., IV. 37/1. A convenient apparatus for applying it [sc. heated air] was invented by the late Dr. Gower, called a Sudatorium.
1851. D. Wilson, Preh. Ann. (1863), II. III. ii. 25. The Roman mansion with its hypocaust and sudatorium.
1899. F. T. Bullen, Idylls Sea, iv. 20. I awoke streaming as if in the sudatorium of a Hammam.
