noun[mass noun] trademark
An aerosol propellant, refrigerant, or organic solvent consisting of one or more of a group of chlorofluorocarbons and related compounds.
- The foundry, now in its fifth year, is one of several successful recycling ventures launched by McDonald; the group also recycles appliances, donated cars and trucks, freon and propane, and clothing, fabrics and books.
- As a result, the sites contain hazardous materials ranging from old fridges containing freon, which scientists say depletes the ozone layer, to old propane tanks.
- Earlier over lunch I had been three pages into a biography of the man who invented Freon when the article suddenly made no sense at all - instead of freon, it was now discussing Medieval paint technology.
1930s: of unknown origin.
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