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photochemical smog
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photochemical smog
noun Meteorology.
air pollution containing ozone and other reactive chemical compounds formed by the action of sunlight on nitrogen oxides and hydrocarbons, especially those in automobile exhaust.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Photochemical smog
is always a great word to know.
So is broken. Does it mean:
| a sky being more than half covered, but not totally covered, by clouds |
| the upper portion of a cumulus cloud characterized by dense, sharply defined, cauliflower-like upper parts and sometimes by great verticality |
American Heritage
Medical Dictionary
photochemical smog n.
Air pollution produced by the action of sunlight on hydrocarbons, nitrogen oxides, and other pollutants.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
photochemical smog  (fō'tō-kěm'ĭ-kəl) Pronunciation Key
See smog. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Word Dynamo Rating For Photochemical smog
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