phalanstery

[S]he seemed to him a revelation of a class, and a multitude of socialistic figures, of names and episodes that he had heard of, grouped themselves behind her. She looked as if she had spent her life on platforms, in audiences, in conventions, in phalansteries, in séances; in her faded face there was a kind of reflection of ugly lecture-lamps; with its habit of an upward angle, it seemed turned toward a public speaker, with an effort of respiration in the thick air in which social reforms are usually discussed.

When Hollingsworth and Priscilla retreat to a cottage at the end of the novel, they are spurning not only reformatories and phalansteries but also boarding-houses, tenements, and hotels.