Definition of "sanitarium"

Of all the queer collections of humans outside of a crazy asylum, it seemed to me this sanitarium was the cup winner. […] When you're well enough off so's you don't have to fret about anything but your heft or your diseases you begin to get queer, I suppose.

1913, Joseph C[rosby] Lincoln, chapter V, in Mr. Pratt’s Patients, New York, N.Y., London: D[aniel] Appleton and Company

Treatment in tuberculosis sanitariums at the expense of the public might be warranted.

1954 February 15, Henry E. Michelson, “The Syndrome of Lupus Erythematosus”, in Modern Medicine, volume 22, number 4, Minneapolis, Minn.: Modern Medicine Publications, Inc., page 98