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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Within the ominous black smoke pouring out of the white tower lies millions of annual pounds of nitrogen oxide, sulfur dioxide, hydrochloric acid, carbon monoxide, soot and more. Lisa Boyd, Baltimore Sun, 15 Feb. 2025 Its plunge back to Earth through the atmosphere may have generated 45.5 metric tons of metal oxides and 40 metric tons of nitrogen oxides, according to University College London atmospheric chemistry researcher Connor Barker. Tereza Pultarova, Space.com, 2 Feb. 2025 But efforts to reduce nitrogen oxides emissions statewide not only help the park but also people who suffer from respiratory ailments. Noelle Phillips, The Denver Post, 8 Sep. 2024 Using hydrogen, whose byproduct is water vapor, for propulsive power instead of diesel, which yields carbon dioxide and nitrogen oxides, is obviously better for the environment. IEEE Spectrum, 18 Dec. 2024 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 3 Mar. 2025.

Kids Definition

nitrogen oxide

noun
: any of various oxides of nitrogen: as

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