Chlorofluorocarbon (noun)

1. A compound that contains chlorine, fluorine, and carbon atoms, used as a refrigerant, a cleaning agent, and in other industrial applications.
2. A class of compounds that have been used as refrigerants, solvents, and propellants, but are now known to contribute to ozone depletion and climate change.

Origin:

The word "chlorofluorocarbon" is derived from its chemical structure, which is composed of chlorine, fluorine, and carbon atoms. it is first recorded in english in the 20th century.

Examples:

1. The use of chlorofluorocarbons as refrigerants has been banned due to their role in ozone depletion.
2. Chlorofluorocarbons were once commonly used in aerosol sprays.
3. Chlorofluorocarbons are known to be a major contributor to climate change.
4. The use of chlorofluorocarbons as refrigerants has been phased out under the Montreal Protocol.
5. Chlorofluorocarbons are a class of compounds that are harmful to the environment.