Hydrofluorocarbon (HFC)
DEFINITION: Any of several organic compounds composed of hydrogen, fluorine and carbon. HFCs are produced synthetically and are used primarily as refrigerants. They became widely used for this purpose beginning in the late 1980s, with the introduction of the Montreal Protocol which phased out the use of chemicals such as halons and chlorofluorocarbons (CFCs) that contribute to the depletion of Earth’s ozone layer