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
Leveraging solutions such as lasers, ozone and nanobubbles, the brand saves on chemical, water and energy consumption.
—
Fairchild Studio, Footwear News, 24 Nov. 2025
Natural factors, such as temperature and atmospheric circulation, also influence ozone concentrations and are likely to have contributed to a smaller ozone hole this year, according to researchers.
—Daniel Peck, ABC News, 24 Nov. 2025
By manipulating ozone gas and moisture within a machine, Guess can achieve the classic stone wash look—being that identified by its signature highs, lows and abrasion—without using a single stone.
—Alexandra Harrell, Sourcing Journal, 24 Nov. 2025
In many therapy concepts, it is complemented by additional interventions such as hyperthermia, ozone or infusion therapies.
—CBS News, 19 Nov. 2025
See All Example Sentences for ozone
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Fairchild Studio, Footwear News, 24 Nov. 2025
Natural factors, such as temperature and atmospheric circulation, also influence ozone concentrations and are likely to have contributed to a smaller ozone hole this year, according to researchers.
—Daniel Peck, ABC News, 24 Nov. 2025
By manipulating ozone gas and moisture within a machine, Guess can achieve the classic stone wash look—being that identified by its signature highs, lows and abrasion—without using a single stone.
—Alexandra Harrell, Sourcing Journal, 24 Nov. 2025
In many therapy concepts, it is complemented by additional interventions such as hyperthermia, ozone or infusion therapies.
—CBS News, 19 Nov. 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 2 Dec. 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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