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n. A hot-air room used for sweat baths. Also called sudatory.

n. A hot room used to induce sweating

n. A sudatory.

n. A hot-air bath for producing perspiration.

n. a bathhouse for hot air baths or steam baths

"The praefurnium also contained the remains of a limestone staircase, almost certainly belonging to an earlier building phase, of which two steps were already exposed, most likely leading to a small circular bath (either a private tub or part of a sudatorium or sweating room)."

bathhouse    bagnio   

sudatoria   

sudatory