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

The stricter rules will affect model year 2027–2032 vehicles and deal with carbon dioxide, nitrogen oxide, and other greenhouse gas emissions. —Sebastian Blanco, Car and Driver, 10 Apr. 2023

The result is an increase in emissions of greenhouse gasses, sulfur dioxide, fine particulate matter and nitrogen oxides, study authors say. —Dorany Pineda, Los Angeles Times, 30 Mar. 2023

The governing coalition wants to cut emissions of pollutants, predominantly nitrogen oxide and ammonia, by 50% nationwide by 2030. —Mike Corder, The Christian Science Monitor, 16 Mar. 2023

Particulate matter is typically caused by industries and nitrogen oxide is smog. —Sriya Reddy, Dallas News, 8 Mar. 2023

Burning fossil fuels also emits harmful pollutants like sulfur dioxide, ozone, nitrogen oxides and soot, which can cause health problems like asthma, bronchitis and lung cancer. —Clare Mulroy, USA TODAY, 24 Feb. 2023

Acid rain happens when sulfur dioxide and nitrogen oxides are emitted into the atmosphere and moved by wind and air currents, the EPA's website says. —Haadiza Ogwude, The Enquirer, 17 Feb. 2023

Wildfire smoke can contain pollutants such as ozone, volatile organic compounds, carbon monoxide, nitrogen oxide and trace metals, according to the LAO report. —Claire Hao, San Francisco Chronicle, 14 Nov. 2022

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Word History

First Known Use

1868, in the meaning defined above

Kids Definition

nitrogen oxide

noun

: any of various oxides of nitrogen: as

a

: nitrogen dioxide

b

: nitrous oxide