A. My definition was a c+p from a Google search for "define piracy"
B. The equation of copyright infringement with other types of piracy (and theft for that matter) is misleading and pure propaganda (granted, its 300 year old propaganda, but still wrong).
Agreed, it has a long history of being used in that sense. That does not however make it more correct. Perhaps it's time to stop just going with the equation of piracy and infringement, and instead call it what it is. Old misconceptions are still misconceptions.