smog

noun

\ ˈsmäg

, ˈsmȯg \

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

Other Words from smog Synonyms Example Sentences Phrases Containing smog Learn More About smog

Examples of smog in a Sentence

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

Recent Examples on the Web Most of us have resorted to cheap sprays from our local supermarket that often do more harm than good - these usually offer disappointingly short life-spans, smell too sharply, and clog your nostrils like smog. — Grooming Playbook, The Salt Lake Tribune, 10 May 2022 If the heat, the altitude and the passionate fans at Mexico’s iconic fortress home don’t get you, the smog will. — Los Angeles Times, 24 Mar. 2022 The smog leads to watery eyes, migraines, and lung and heart diseases. — Manavi Kapur, Quartz, 22 Nov. 2021 My expectation was to find L.A. a post-apocalyptic, smog-ridden, industrial wasteland. — Justin Raystaff Writer, Los Angeles Times, 28 Apr. 2022 Ground-level smog contains ozone, which is the main health concern. — Ella Nilsen, CNN, 12 Apr. 2022 Ethanol emissions can react with sunlight to create smog, so the agency saw summer as an especially risky time to burn extra ethanol. — Nicolás Rivero, Quartz, 12 Apr. 2022 Volatile organic compounds refer to thousands of chemicals that can react to form smog, according to the federal Environmental Protection Agency. — Will Langhorne, Arkansas Online, 21 Feb. 2022 During the 2008 Summer Games, Beijing’s smog, energy-intensive and water-depleting construction were a subject of widespread debate and scrutiny from Chinese and international groups. — Washington Post, 20 Jan. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'smog.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.