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

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The turbines emit pollutants, including nitrogen oxides and formaldehyde, according to their manufacturer. Jon Gerberg, NBC news, 30 May 2025 But gas combustion still results in harmful pollutants, including nitrogen oxides, which the American Lung Assn. says can cause asthma attacks and reduced lung function. Sammy Roth, Los Angeles Times, 22 May 2025 Advertisement Advertisement One of the biggest environmental dangers of fireworks displays is the dispersal of fine particles of sulfur dioxide, nitrogen oxide, and more, measuring just 2.5 microns—or 2.5 millionths of a meter. Jeffrey Kluger, Time, 4 July 2025 According to Industrious Labs, Burns Harbor ranks as one of Indiana’s top three biggest polluters among industrial sources for nitrogen oxides, sulfur dioxide, fine particulate matter, carbon monoxide and lead. Maya Wilkins, Chicago Tribune, 20 May 2025 See All Example Sentences for nitrogen oxide

Word History

First Known Use

1868, in the meaning defined above

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

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Cite this Entry

“Nitrogen oxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nitrogen%20oxide. Accessed 25 Jul. 2025.

Kids Definition

nitrogen oxide

noun
: any of various oxides of nitrogen: as

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