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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Burning fossil fuel not only releases CO2 emissions, but also has strong warming non-CO2 effects due to nitrogen oxides (NOx), vapor trails and cloud formation triggered by the altitude at which aircraft operate. Lea Lane, Forbes.com, 24 Apr. 2025 As a result, power generators have been able to reduce their emissions of dangerous pollutants such as nitrogen oxides, sulfur dioxide and mercury. David J. Vogel, The Conversation, 17 Apr. 2025 Studies also show that shifting to battery electric vehicles (BEVs) can reduce nitrogen oxide emissions, making a clear case for greener fleets. 4. Hany Naeem, Forbes.com, 31 Mar. 2025 Specifically, the proposal would amend Rules 1111 and 1121 for the purpose of reducing nitrogen oxide (NOx) emissions from residential and commercial heating systems by phasing out gas appliances entirely. Jon Coupal, Oc Register, 31 Mar. 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 1 May. 2025.

Kids Definition

nitrogen oxide

noun
: any of various oxides of nitrogen: as

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