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
a
b
c
Examples of nitrogen oxide in a Sentence
Recent Examples on the Web
The devices enabled vehicles to far exceed legal limits for nitrogen oxides, a pollutant that can cause respiratory illnesses and contributes to smog.
—
CBS News, 23 Dec. 2025
Multiple studies have shown that burning methane gas produces nitrogen oxide, carbon monoxide, formaldehyde and benzene that can worsen respiratory illnesses such as asthma and increase the risk of cancer.
—Alan K. Chen, The Conversation, 18 Dec. 2025
This exhaust system converts pollutants (hydrocarbons, carbon monoxide and nitrogen oxides) into compounds that already make up our atmosphere (nitrogen, oxygen, carbon dioxide and water).
—Clare Mulroy, USA Today, 12 Nov. 2025
Aside from potentially being carbon neutral, methanol promises much lower levels of sulfur oxides, nitrogen oxides and soot particles, as well as being biodegradable and easy to store.
—New Atlas, 30 Oct. 2025
See All Example Sentences for nitrogen oxide
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
CBS News, 23 Dec. 2025
Multiple studies have shown that burning methane gas produces nitrogen oxide, carbon monoxide, formaldehyde and benzene that can worsen respiratory illnesses such as asthma and increase the risk of cancer.
—Alan K. Chen, The Conversation, 18 Dec. 2025
This exhaust system converts pollutants (hydrocarbons, carbon monoxide and nitrogen oxides) into compounds that already make up our atmosphere (nitrogen, oxygen, carbon dioxide and water).
—Clare Mulroy, USA Today, 12 Nov. 2025
Aside from potentially being carbon neutral, methanol promises much lower levels of sulfur oxides, nitrogen oxides and soot particles, as well as being biodegradable and easy to store.
—New Atlas, 30 Oct. 2025
See All Example Sentences for nitrogen oxide
Cite this Entry
“Nitrogen oxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nitrogen%20oxide. Accessed 28 Dec. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share