单词 | chlorofluorocarbon |
释义 | chlorofluorocarbon[ klawr-oh-floor-oh-kahr-buhn, -flawr-; klohr-oh-floor-oh-kahr-buhn, -flohr- ] / ˌklɔr oʊˌflʊər oʊˈkɑr bən, -ˌflɔr-; ˌkloʊr oʊˌflʊər oʊˈkɑr bən, -ˌfloʊr- / nounany of several volatile, inert, saturated compounds of carbon, fluorine, chlorine, and hydrogen: used as refrigerants, foam-blowing agents, solvents, and, formerly, as aerosol propellants until scientists became concerned about depletion of the atmospheric ozone layer. Compare chlorofluoromethane. Origin of chlorofluorocarbonFirst recorded in 1945–50; chloro-2 + fluorocarbon Words nearby chlorofluorocarbonchlorobromide paper, chlorobromomethane, chlorocarbon, chloroethane, chloroethene, chlorofluorocarbon, chlorofluoromethane, chloroform, chloroformism, chloroformyl chloride, chlorogenic acid Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for chlorofluorocarbonchlorofluorocarbon / (ˌklɔːrəˌflʊərəʊˈkɑːbən) / nounchem any of various gaseous compounds of carbon, hydrogen, chlorine, and fluorine, used as refrigerants, aerosol propellants, solvents, and in foam: some cause a breakdown of ozone in the earth's atmosphereAbbreviation: CFC Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for chlorofluorocarbonchlorofluorocarbon [ klôr′ō-flur′ō-kär′bən ] A fluorocarbon containing chlorine. Chlorofluorocarbons are destructive to the Earth's ozone layer. For this reason, the production and use of chlorofluorocarbons has been sharply reduced in recent years. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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