sanatorium
nounUK /ˌsæn.əˈtɔːɹ.iː.əm/ · CA, US /ˌsæn.əˈtoɹ.i.əm/
Etymology Haplology from Latin sanatus (past participle of sānō (“to cure, to heal”)) + Latin -torium. Alternatively, alteration of sanitarium influenced by words like curatorium and moratorium.
1
An institution that treats chronic diseases, and provides supervised recuperation and convalescence.