from The American Heritage® Dictionary of the English Language, 4th Edition

  • A trademark used for a variety of nonflammable gaseous or liquid fluorinated hydrocarbons employed primarily as working fluids in refrigeration and air conditioning and as aerosol propellants.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • proper n. Any of several non-flammable refrigerants based on halogenated hydrocarbon including R-12, R-22, and R23.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. any one or more chlorofluorocarbons (or related compounds) that are used as an aerosol propellant, organic solvent, or refrigerant


Sorry, no etymologies found.


  • He described the incident as a "habitability" issue for plant employees because of the escaping refrigerant Freon, which is being released out of the building through the plant's ventilation system.

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  • "Freon" (refrigerant of any kind) is NOT a good choice for inflating a tire either.

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  • They use electric power to compress a refrigerant such as Freon, and when the refrigerant expands, it cools the surrounding air.

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  • It might also prompt students to move to inhalants such as Freon or household cleaners, which are equally dangerous and will not show up on the screening.

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  • In 1974 Mario Molina and Sherwood Rowland showed that chlorine compounds formed by the photochemical decomposition of chlorofluorocarbons (CFC or "Freon" gases) could decompose the stratospheric ozone.

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  • These two tubes do not move air; instead, they move a gas refrigerant (such as Freon) that carries the heat between the indoor and outdoor coils.

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  • Called "huffing" or "dusting," it delivers a concentration of gas, such as Freon, that replaces oxygen in the lungs. - NEWS

  • "He said, 'Freon's been banned for environmental reasons.'


  • Know who lead the charge, a company who made Freon but couldn't make any real profits with it.

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  • Remember the ban on ozone depleting substances, Freon?

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