1
: a triatomic very reactive form of oxygen that is a bluish irritating gas of pungent odor, that is a major air pollutant in the lower atmosphere but a beneficial component of the upper atmosphere, and that is used for oxidizing, bleaching, disinfecting, and deodorizing
2
: pure and refreshing air
relished the ozone of morning
Examples of ozone in a Sentence
Scientists are concerned about ozone depletion.
A light breeze filled the rooms of our seaside cottage with ozone.
Recent Examples on the Web
Extended exposure to pollutants like ozone or fine particulate matter can lead to coughing, throat irritation and shortness of breath, and .
—
Anna Skinner, MSNBC Newsweek, 18 Apr. 2025
The likes of oxygen and water vapor are the most obvious of such biosignatures, but others include ozone, methane, nitrous oxide, dimethyl sulphide and phosphine, to name a few.
—Keith Cooper, Space.com, 7 Apr. 2025
Once released, terpenes react with ozone in the air and form nanoparticles.
—Joshua Rapp Learn, Discover Magazine, 31 Mar. 2025
Huxley added tropospheric ozone is estimated to be responsible for staple crop yields losses of up to 12% for wheat, 16% for soybean, and 4% for rice.
—Jamie Hailstone, Forbes.com, 27 Mar. 2025
See All Example Sentences for ozone
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Anna Skinner, MSNBC Newsweek, 18 Apr. 2025
The likes of oxygen and water vapor are the most obvious of such biosignatures, but others include ozone, methane, nitrous oxide, dimethyl sulphide and phosphine, to name a few.
—Keith Cooper, Space.com, 7 Apr. 2025
Once released, terpenes react with ozone in the air and form nanoparticles.
—Joshua Rapp Learn, Discover Magazine, 31 Mar. 2025
Huxley added tropospheric ozone is estimated to be responsible for staple crop yields losses of up to 12% for wheat, 16% for soybean, and 4% for rice.
—Jamie Hailstone, Forbes.com, 27 Mar. 2025
See All Example Sentences for ozone
Cite this Entry
“Ozone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ozone. Accessed 21 Apr. 2025.
Copy CitationKids Definition
ozone
noun1
: a form of oxygen that is a bluish irritating sharp-smelling gas containing three atoms per molecule, and that is used especially in disinfecting, deodorizing, and bleaching
2
: pure and refreshing air
Medical Definition
ozone
noun
: a triatomic very reactive form of oxygen that is a bluish irritating gas of pungent odor, that is formed naturally in the atmosphere by a photochemical reaction and is a major air pollutant in the lower atmosphere but a beneficial component of the upper atmosphere, and that is used for oxidizing, bleaching, disinfecting, and deodorizing
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