san·a·to·ri·um 
/ˌsænəˈtorijəm/ noun
plural san·a·to·ri·ums or san·a·to·ria /ˌsænəˈtorijəm/ noun /-ˈtorijə/ [count] old-fashioned : a place for the care and treatment of people who are recovering from illness or who have a disease that will last a long time —called also (US) sanitarium (US) sanitorium
