Medical Dictionary

smog

noun \ˈsmäg also ˈsmg\

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
March 29, 2015
discomfit Hear it
To thwart or disconcert
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