nitrogen oxide

noun

: any of several oxides of nitrogen most of which are produced in combustion and are considered to be atmospheric pollutants: such as

Examples of nitrogen oxide in a Sentence

Recent Examples on the Web Maricopa County county regulates facilities that have the potential to emit chemicals such as carbon monoxide, nitrogen oxides, sulfur dioxide and more, according to Ari Halpert, communications department officer with the Maricopa County Air Quality Department. Caralin Nunes, The Arizona Republic, 1 Apr. 2024 Fossil-fuel burning trucks spew alarming amounts of greenhouse gases, dangerous nitrogen oxides, lung-clogging particulate matter and a toxic stew of other pollutants. Russ Mitchell, Los Angeles Times, 19 Mar. 2024 Tampering with or removing emissions controls can drastically increase the release of nitrogen oxides, particulate matter, carbon monoxide and non-methane hydrocarbons found in vehicle exhaust, causing potentially serious health risks. Keith Matheny, Detroit Free Press, 26 Feb. 2024 These facilities have attracted thousands of heavy-duty trucks that release smog-forming nitrogen oxides and carcinogenic diesel exhaust. Tony Briscoe, Los Angeles Times, 22 Dec. 2023 Greater fuel efficiency also reduces other combustion emissions, including nitrogen oxides and particulate matter. Marisa Garcia, Forbes, 24 Feb. 2024 The new limits target nitrogen oxide pollution, a major component of ground-level ozone, or smog, that has been found to worsen asthma, chronic bronchitis and other respiratory illnesses. Ann E. Marimow, Washington Post, 21 Feb. 2024 Cars and trucks are significant contributors to the state’s ozone pollution, releasing tons of volatile organic compounds and nitrogen oxides annually. Noelle Phillips, The Denver Post, 1 Feb. 2024 About 2,000 school buses are on the roads in Connecticut’s big cities and poor towns spewing nitrogen oxides and other toxic emissions would be eliminated if those fleets were replaced with electric buses, DEEP said. Don Stacom, Hartford Courant, 2 Jan. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'nitrogen oxide.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1868, in the meaning defined above

Time Traveler
The first known use of nitrogen oxide was in 1868

Dictionary Entries Near nitrogen oxide

Cite this Entry

“Nitrogen oxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nitrogen%20oxide. Accessed 26 Apr. 2024.

Kids Definition

nitrogen oxide

noun
: any of various oxides of nitrogen: as

More from Merriam-Webster on nitrogen oxide

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