Freon
proper noun
- brand name for certain halocarbon compounds
Wiktionary
Pronunciation: /ˈfɹiːɒn/
noun
Etymology: A genericization of the Chemours trademark "Freon." According to Flood, the name was formed from freeze and the arbitrary suffix -on.
- Any of several nonflammable refrigerants based on halogenated hydrocarbon including R-12, R-22, and R-23.
- A gaseous ozone-depleting refrigerant.
- A chlorofluorocarbon.