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smog

[smog, smawg] /smɒg, smɔg/
noun
1.
smoke or other atmospheric pollutants combined with fog in an unhealthy or irritating mixture.
verb (used with object)
3.
to cover or envelop with or as if with smog.
Origin
1900-1905
1900-05; sm(oke) + (f)og1
Related forms
smogless, adjective
desmog, verb (used with object), desmogged, desmogging.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for desmogged

smog

/smɒɡ/
noun
1.
a mixture of smoke, fog, and chemical fumes
Derived Forms
smoggy, adjective
Word Origin
C20: from sm(oke + f)og1
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
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Word Origin and History for desmogged
smog
1905, blend of smoke and fog, formed "after Lewis Carrol's example" [Klein; see portmanteau]. Reputedly coined in ref. to London, and first attested there in a paper read by Dr. H.A. des Voeux, treasurer of the Coal Smoke Abatement Society, though he seems not to have claimed credit for coining it.
Online Etymology Dictionary, © 2010 Douglas Harper
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desmogged in Medicine

smog (smŏg)
n.

  1. Fog that has become mixed and polluted with smoke.

  2. A form of air pollution produced when sunlight causes hydrocarbons and nitrogen oxides from automotive emissions to combine in a photochemical reaction.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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desmogged in Science
smog
  (smŏg)   
  1. A form of air pollution produced by the reaction of sunlight with hydrocarbons, nitrogen compounds, and other gases primarily released in automobile exhaust. Smog is common in large urban areas, especially during hot, sunny weather, where it appears as a brownish haze that can irritate the eyes and lungs. Ozone, a toxic gas that is not normally produced at lower atmospheric levels, is one of the primary pollutants created in this kind of smog. Also called photochemical smog.

  2. Fog that has become polluted with smoke and particulates, especially from burning coal.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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desmogged in Culture

smog definition


A haze or fog composed of water vapor, complex molecules, and suspended particles.

Note: In North America, the primary cause of smog is pollution from automobile exhaust.
Note: The Los Angeles basin, where pollutants can be trapped by inversions and the surrounding mountains, has frequent problems with smog, as do other major urban areas.
Note: The word smog is a combination of smoke and fog.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Related Abbreviations for desmogged

smog

smoke and fog
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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