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
The researchers found those exposed to higher levels of both PM2.5 and ozone during the training period had, on average, slower race finishing times.
—
Claire Maldarelli, Scientific American, 28 Feb. 2025
At the national level, the Clean Air Act requires that six common air pollutants, such as ozone and carbon monoxide, are kept below specific levels.
—Jenni Shearston, The Conversation, 25 Feb. 2025
These VOCs contribute to ground-level ozone and smog, which can cause respiratory issues and environmental damage.
—Robert Rapier, Forbes, 23 Feb. 2025
The oxygen, methane and ozone of modern Earth are examples of possible biosignatures, Arney said.
—Tariq Malik, Space.com, 16 Jan. 2025
See All Example Sentences for ozone
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Claire Maldarelli, Scientific American, 28 Feb. 2025
At the national level, the Clean Air Act requires that six common air pollutants, such as ozone and carbon monoxide, are kept below specific levels.
—Jenni Shearston, The Conversation, 25 Feb. 2025
These VOCs contribute to ground-level ozone and smog, which can cause respiratory issues and environmental damage.
—Robert Rapier, Forbes, 23 Feb. 2025
The oxygen, methane and ozone of modern Earth are examples of possible biosignatures, Arney said.
—Tariq Malik, Space.com, 16 Jan. 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 4 Mar. 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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