ozone
noun
\ ˈō-ˌzōn
\
\
Definition of ozone
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
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Other Words from ozone
ozonic
\ ō-ˈzō-nik
, -ˈzä-
\
adjective
, -ˈzä-
\
adjective
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 ozone air pollution is particularly harmful for young children, seniors and those with respiratory and heart conditions, according to the district, which extended the Spare the Air alert into Friday. — Rick Hurd, The Mercury News, "‘Another hot day’: Bay Area temperatures soar again," 15 Aug. 2019 Further Reading New measurement confirms: The ozone is coming back But all that good news is not necessarily going to continue. — Cathleen O'grady, Ars Technica, "While ozone is recovering, we’re doing things to prolong the process," 30 July 2019 My goodness, what’s happening to the ozone and the ice caps? — Liz Shannon Miller, The Verge, "How Years and Years creator Russell T. Davies sees the future unfolding," 2 July 2019 The Alabama Department of Environmental Management said ground-level concentrations of ozone are expected to rise to unhealthy levels for sensitive groups again on Saturday. — Leigh Morgan, al, "Another Code Orange air quality alert issued for Birmingham metro area for Saturday," 16 Aug. 2019 The metropolitan area experienced 114 days in 2016 when levels of either ozone or particulate matter hit unsafe levels, according to a report from Environment Maryland. — Justin Worland, Time, "President Trump Condemned Baltimore as 'Disgusting.' His Administration’s Policies Aren't Exactly Helping," 31 July 2019 Heat also worsens urban air quality by producing higher concentrations of ozone. — The Economist, "Heatwaves like that being experienced in America are more dangerous in cities," 21 July 2019 Generally, the highest levels of ozone occur in the afternoon. — Mike Cruz, azcentral, "Unhealthful air expected Sunday in Maricopa County," 29 June 2019 But nitrogen oxides contribute to the formation of ground-level ozone, a major pollutant that can be harmful to people. — National Geographic, "Acid rain, explained," 12 June 2019These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ozone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for ozone
ozone
noun
English Language Learners Definition of ozone
: a form of oxygen that is found in a layer high in the earth's atmosphere
chiefly British, informal
: fresh healthy air especially near the sea
See the full definition for ozone in the English Language Learners Dictionary
ozone
noun
\ ˈō-ˌzōn
\
\
Kids Definition of ozone
: a faintly blue form of oxygen that is present in the air in small quantities
ozone
noun
\ ˈō-ˌzōn
\
\
Medical Definition of ozone
: 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
Other Words from ozone
ozonic
\ ō-ˈzō-nik
, -ˈzän-ik
\
adjective
, -ˈzän-ik
\
adjective
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