nitrogen oxide


Definition of nitrogen oxide

: 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

Recent Examples on the Web The excess nitrogen oxide in the atmosphere could wash away as much as 7 percent of Earth’s ozone layer, too, according to the study. Jennifer Leman, Popular Mechanics, 31 Dec. 2021 Ozone pollution, which affects air quality, comes from a combination of heat and sunlight, nitrogen oxide gas released from cars and trucks, and volatile organic compounds from activities such as construction and painting. Elena Bruess, San Antonio Express-News, 13 Nov. 2021 The federal government identifies those cities that have high air pollution levels and where vehicle emissions can be a big source of unsafe contaminants such as ozone, carbon monoxide, nitrogen oxide, etc. Sarah Bowman, The Indianapolis Star, 30 Nov. 2021 Aviation is responsible for 2.5% of global CO2 emissions, and even more global warming when other greenhouse gas emissions such as nitrogen oxide are taken into account. Aryn Baker, Time, 20 Oct. 2021 But there’s also methane, nitrogen oxide, water vapor and a suite of fluorinated gases, among others. Washington Post, 10 Aug. 2021 Transportation is the main cause of nitrogen oxide emissions in Arizona, accounting for 75% of the total, according to 2017 EPA data. Zayna Syed, The Arizona Republic, 16 Oct. 2021 On a typical long-haul journey, a large ship can emit more than 5,000 tons of CO2 along with harmful pollutants including nitrogen oxide (NOx), sulfur oxide (SOx) and particulate matter including soot. Nils Rokke, Forbes, 5 Oct. 2021 The new engines will reduce nitrogen oxide emissions and other pollutants such as sulphur dioxide, volatile organic compounds and particulate matter. From Usa Today Network And Wire Reports, USA TODAY, 24 Aug. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nitrogen oxide.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of nitrogen oxide

1868, in the meaning defined above

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Time Traveler for nitrogen oxide

Time Traveler

The first known use of nitrogen oxide was in 1868

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Dictionary Entries Near nitrogen oxide


nitrogen oxide

nitrogen pentoxide

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Statistics for nitrogen oxide

Last Updated

20 Jan 2022

Cite this Entry

“Nitrogen oxide.” Dictionary, Merriam-Webster, Accessed 20 Jan. 2022.

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