from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of a set of inert liquid or gaseous organic compounds that contain only carbon and fluorine and may be used as refrigerants and in other products in place of chlorocarbons. Perfluorocarbons are greenhouse gases.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry Any compound formally derived from a
hydrocarbonby replacing each hydrogenatom with one of fluorine
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a powerful greenhouse gas emitted during the production of aluminum
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