C diff
n.— «We are told that 60,000 hospital patients this year will catch the superbug Clostridium difficile.…Cases of “C diff,” as it is known in the trade, have risen by 22 per cent in the past year, affecting more than 15,500 people over 65.» —“Hospitals must be taken to the cleaners” by Camilla Cavendish Times (London, United Kingdom) July 26, 2007. (source: Double-Tongued Dictionary)