Dictionary

smog

noun \ˈsmäg, ˈsmg\

: fog mixed with smoke : a cloud of dirty air from cars, factories, etc., that is usually found in cities

Full Definition of SMOG

:  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
smog·less \ˈsmä-gləs, ˈsm-\ adjective

Examples of SMOG

  1. <the city's smog was once so bad that darkness often prevailed, even at noon>

Origin of SMOG

smoke + fog
First Known Use: 1884

Related to SMOG

Other Climate/Meteorology Terms

monsoon, occlusion, ozone, rime, squall, zephyr

Rhymes with SMOG

SMOG Defined for Kids

smog

noun \ˈsmäg\

Definition of SMOG for Kids

:  a fog made heavier and thicker by the action of sunlight on polluted air
Medical Dictionary

smog

noun \ˈsmäg also ˈsmg\

Medical Definition of SMOG

:  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

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