ˌsanəˈtōrēəm, -ˈtȯr- noun
( plural sanatoriums -mz ; or sanato·ria -ēə)
Etymology: New Latin, from Late Latin, neuter of sanatorius sanatory
1. : an establishment that provides therapy by physical agents (as hydrotherapy, light therapy) combined with diet, exercise, and other measures for treatment or rehabilitation
2.
a. : an institution for rest and recuperation especially for invalids and convalescents
b. : an establishment for the treatment of the sick especially if suffering from chronic disease (as alcoholism, tuberculosis, nervous or metal disease) requiring protracted care