(san·i·tar·i·um) NOUN: 1.) An institution for the treatment of chronic diseases or for medically supervised recuperation. 2.) A resort for improvement or maintenance of health, especially for convalescents.

a hospital for recuperation or for the treatment of chronic diseases

Sanitarium is a point-and-click adventure game released in 1998 by ASC Games. A psychological thriller often praised for its atmosphere and originality, Sanitarium tells the story of a man stricken with amnesia, trying frantically to unveil the details of his institutionalization in a terrifying asylum. The search for his own identity takes place within the grounds of the sanitarium and in the main character's delusions and flashbacks, as he confronts the ghosts of his past.

A health station or retreat; a sanatorium.

a mental institution which can be left on a inmate's own will