| / English Dictionary |
OZONE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
A colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)
Classified under:
Hypernyms ("ozone" is a kind of...):
gas (a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely)
Meronyms (substance of "ozone"):
atomic number 8; O; oxygen (a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust)
Context examples:
A more oxygen-rich atmosphere would have facilitated the emergence and viability of life on land, by generating an ozone layer, which shields against harmful ultraviolet rays from the sun.
(Size matters: if you are a bubble of volcanic gas, The Titi Tudorancea Bulletin)
OH in the atmosphere also forms when ultraviolet sunlight reaches the lower atmosphere and reacts with water vapor (H2O) and ozone (O3) to form two OH molecules.
(Greenhouse Gas ‘Detergent’ Recycles Itself in Atmosphere, NASA)
On Earth, ozone absorbs UV in the stratosphere, protecting our world from a lot of the Sun’s harmful radiation.
(WASP-18b Has Smothering Stratosphere Without Water, NASA)
Researchers found that in 2015, diesel vehicles emitted 13.1 million tons of NOx, a chemical precursor to particulate matter and ozone.
(Diesel Pollutes More Than Lab Tests Detect, The Titi Tudorancea Bulletin)
An increase in global UV with the diminishing of the ozone layer
(Global Change/UV, NCI Thesaurus)
The combined health effect of multiple air pollutants ̶ ozone, fine particles known as PM2.5, nitrogen oxides, and black carbon ̶ was greater than when the pollutants were assessed individually.
(Study finds link between long-term exposure to air pollution and emphysema, National Institutes of Health)
In regions such as Australia, where the ozone layer has been substantially depleted, it is estimated that approximately 2 in 3 people will be diagnosed with skin cancer by the time they reach the age of 70.
(New wristband provides personalised and real-time tracking of UV exposure, University of Granada)
The investigators estimated the couples’ exposures to ozone based on pollution levels in their residential communities.
(Air pollution exposure in early pregnancy linked to miscarriage, National Institutes of Health)
The persistence of these clouds is an important first step supporting chemical reactions that destroy ozone, scientists say.
(Warmth in the Antarctic stratosphere helped limit the size of the ozone hole in 2017 to the smallest observed since 1988, NOAA)
Breathing bad ozone can be harmful.
(Ozone, Environmental Protection Agency)
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