What does the word phthisis mean?

Usage examples for phthisis

  1. His mother died in his ninth year, after a second marriage, a victim to phthisis. – Maxim Gorki by Hans Ostwald
  2. She died of phthisis in 1875. It is to her varied automatic powers as illustrating our subject that I would call attention. – Telepathy and the Subliminal Self by R. Osgood Mason