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
: nitric oxide
b
: nitrogen dioxide
c
: nitrous oxide
Example Sentences
Recent Examples on the Web Dense black smoke containing sulfur dioxide, nitrogen oxide, carbon monoxide, and other toxic substances spread west more than 62 miles to Havana, the capital. 
Harold Maass, The Week, 8 Aug. 2022 For example, a brownish-haze called photochemical smog forms in Los Angeles when nitrogen oxide from car exhaust reacts with sunlight in Earth's lower atmosphere. Elizabeth Gamillo, Smithsonian Magazine, 8 Feb. 2022 Such engines produce large quantities of nitrogen oxide, carbon monoxide and other hydrocarbons that harm the environment and cause respiratory disorders in individuals. Naveen Joshi, Forbes, 21 Dec. 2021 The US Environmental Protection Agency is also announcing stricter standards regulating nitrogen oxide (NOx) emissions from heavy-duty trucks, updating the standard for the first time since 2001. Ella Nilsen, CNN, 7 Mar. 2022 The unrest among Dutch farmers was triggered by a government proposal to slash emissions of pollutants like nitrogen oxide and ammonia by 50% by 2030. Peter Dejong, ajc, 4 July 2022 Such facilities release co-pollutants, such as nitrogen oxide, which can cause respiratory infections and asthma. Jonah Valdezstaff Writer, Los Angeles Times, 22 Mar. 2022 The draft rule seeks to rein in nitrogen oxide emissions, which are precursors for harmful particulate matter and ozone. Arianna Skibell, Scientific American, 8 June 2022 As part of the $350 million settlement, FCA had to upgrade the software on affected vehicles to bring them into compliance and pay into a fund meant to pay for damages caused by excess nitrogen oxide emissions. Jonathan M. Gitlin, Ars Technica, 26 May 2022 See More
Harold Maass, The Week, 8 Aug. 2022 For example, a brownish-haze called photochemical smog forms in Los Angeles when nitrogen oxide from car exhaust reacts with sunlight in Earth's lower atmosphere. Elizabeth Gamillo, Smithsonian Magazine, 8 Feb. 2022 Such engines produce large quantities of nitrogen oxide, carbon monoxide and other hydrocarbons that harm the environment and cause respiratory disorders in individuals. Naveen Joshi, Forbes, 21 Dec. 2021 The US Environmental Protection Agency is also announcing stricter standards regulating nitrogen oxide (NOx) emissions from heavy-duty trucks, updating the standard for the first time since 2001. Ella Nilsen, CNN, 7 Mar. 2022 The unrest among Dutch farmers was triggered by a government proposal to slash emissions of pollutants like nitrogen oxide and ammonia by 50% by 2030. Peter Dejong, ajc, 4 July 2022 Such facilities release co-pollutants, such as nitrogen oxide, which can cause respiratory infections and asthma. Jonah Valdezstaff Writer, Los Angeles Times, 22 Mar. 2022 The draft rule seeks to rein in nitrogen oxide emissions, which are precursors for harmful particulate matter and ozone. Arianna Skibell, Scientific American, 8 June 2022 As part of the $350 million settlement, FCA had to upgrade the software on affected vehicles to bring them into compliance and pay into a fund meant to pay for damages caused by excess nitrogen oxide emissions. Jonathan M. Gitlin, Ars Technica, 26 May 2022 See More Word History
First Known Use
1868, in the meaning defined above