chlo·ro·flu·o·ro·car·bon
 /ˌkloroʊˌfloroʊˈkɑɚbən/  noun  ,  pl   -bons [  count  ]
   technical   : a gas that was once commonly used in various products (such as aerosols) but that is believed to cause damage to the ozone layer in the Earth's atmosphere
   Many nations have banned the production of chlorofluorocarbons.
  — abbr. CFC