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
Even though aeration units have been installed to add ozone to the water and slow the growth of algae, the pool’s water must still be cycled, which is where the problem of broken pipes again rears its ugly head.
—
Tracy Grant,
Encyclopedia Britannica,
23 June 2026
It’s linked to ozone and airborne particulate matter formation, according to the National Aeronautics and Space Administration.
—
Sofi Zeman
june 22,
Kansas City Star,
22 June 2026
Contractors and federal workers in recent days have been using chemicals and ozone nanobubbles to combat the algae.
—
Nathan Ellgren,
Chicago Tribune,
22 June 2026
Generally, ozone nanobubbling is effective as a temporary solution for algae blooms.
—
Los Angeles Times,
20 June 2026
See All Example Sentences for ozone
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Tracy Grant,
Encyclopedia Britannica,
23 June 2026
It’s linked to ozone and airborne particulate matter formation, according to the National Aeronautics and Space Administration.
—
Sofi Zeman
june 22,
Kansas City Star,
22 June 2026
Contractors and federal workers in recent days have been using chemicals and ozone nanobubbles to combat the algae.
—
Nathan Ellgren,
Chicago Tribune,
22 June 2026
Generally, ozone nanobubbling is effective as a temporary solution for algae blooms.
—
Los Angeles Times,
20 June 2026
See All Example Sentences for ozone
Cite this Entry
“Ozone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ozone. Accessed 28 Jun. 2026.
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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