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- Dictionarysmog/smɒɡ/
noun
- 1. fog or haze intensified by smoke or other atmospheric pollutants: "exhaust emissions are mainly responsible for the smog"
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a mixture of smoke, gases, and chemicals, especially in cities, that makes the atmosphere difficult to breathe and harmful for health: Smog is a major problem in Athens. As we flew into the airport, we could see a murky yellow smog hovering over the city. Joel Carillet/E+/GettyImages. SMART Vocabulary: related words and phrases.
Smog, or smoke fog, is a type of intense air pollution. The word "smog" was coined in the early 20th century, and is a portmanteau of the words smoke and fog [1] to refer to smoky fog due to its opacity, and odor. [2]
3 days ago · Smog, community-wide polluted air. Although the term is derived from the words smoke and fog, it is often used to describe the pall of automotive or industrial origin that lies over many cities, and its composition is variable. At least two distinct types of smog are recognized: sulfurous smog and photochemical smog.
Smog is a mixture of fog and smoke which occurs in some busy industrial cities. Cars cause pollution, both smog and acid rain. American English : smog / ˈsmɒg /
The meaning of SMOG is a fog made heavier and darker by smoke and chemical fumes; also : a photochemical haze caused by the action of solar ultraviolet radiation on atmosphere polluted with hydrocarbons and oxides of nitrogen especially from automobile exhaust.
Definition of smog noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
A confusing mass of information, esp. from the internet, in which the erroneous, trivial, or irrelevant cannot be easily or efficiently separated…. smog, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary.
SMOG definition: air pollution in a city that is a mixture of smoke, gases, and chemicals. Learn more.
n. 1. Fog that has become mixed and polluted with smoke. 2. A form of air pollution produced by the photochemical reaction of sunlight with hydrocarbons and nitrogen oxides that have been released into the atmosphere, especially by automotive emissions. [sm (oke) + (f)og.] smog′gy adj. smog′less adj.
Smog is the thick haze or smoke that's caused by polluting substances in the air. Generally, the more cars there are in a city, the more likely there is to be smog. There are other culprits for smog, though, including coal-burning factories, other chemical emissions from plants and mills, and nearby forest fires.
