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TOEFL BNC: 4898 COCA: 6010

ozone

ozone /ˈoʊˌzoʊn/ noun
ozone
/ˈoʊˌzoʊn/
noun
Learner's definition of OZONE
[noncount]
: a form of oxygen that is found in a layer high in the earth's atmosphere臭氧
chiefly British, informal : fresh healthy air especially near the sea(尤指海边的)清新空气
TOEFL BNC: 4898 COCA: 6010
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
ozonic adjective

Example Sentences

Scientists are concerned about ozone depletion. A light breeze filled the rooms of our seaside cottage with ozone.
Recent Examples on the Web In the presence of the sun’s rays, nitrogen molecules set of a chain of reactions that produce ozone and destroy free-floating atmospheric methane. Wired, 28 July 2022 Both the rising temperature and the change in the jet streams will reduce ozone in global latitudes north of Houston, Texas, by as much as 4 percent. Caroline Delbert, Popular Mechanics, 28 June 2022 Knozone Action Days are more frequent during warmer months, when pollutants react with sunlight and heat to create ozone. Madison Smalstig, The Indianapolis Star, 20 June 2022 People at greatest risk of harm from breathing air containing ozone include people with asthma, according to the EPA. Quinlan Bentley, The Enquirer, 5 June 2022 The vote is part of the county’s Regional Decarbonization Framework that looks to eliminate carbon dioxide emissions and reduce pollution and ground-level ozone. Rob Nikolewski, San Diego Union-Tribune, 20 Oct. 2021 By the end of the century, atmospheric ozone declines by about 72%. Chelsea Harvey, Scientific American, 20 Aug. 2021 As temps climb and ozone levels rise, Utah officials say, parking the car and taking UTA will help clear the air. Blake Apgar, The Salt Lake Tribune, 31 Aug. 2022 Rising temperatures elevate ozone levels in the air, which can aggravate asthma symptoms and irritate airways. Erik Ortiz, NBC News, 20 Aug. 2022 See More

Word History

Etymology

German Ozon, from Greek ozōn, present participle of ozein to smell — more at odor

First Known Use

1841, in the meaning defined at sense 1

Time Traveler
The first known use of ozone was in 1841
TOEFL BNC: 4898 COCA: 6010
ozone

noun

ADJECTIVE | VERB + OZONE | OZONE + VERB | OZONE + NOUN | PHRASES ADJECTIVEatmospheric, ground-level, stratospheric大氣/地表/平流層臭氧VERB + OZONEdeplete, destroy損耗/破壞臭氧form, produce生成/產生臭氧Ozone is formed when an electric spark is passed through oxygen.電火花遇到氧氣會產生臭氧。OZONE + VERBthin臭氧變薄disappear臭氧消失OZONE + NOUNlayer臭氧層The ozone layer is disappearing over northern Europe.北歐上空的臭氧層正在消失。depletion, destruction, loss臭氧損耗/破壞/減少hole臭氧空洞pollution臭氧污染concentration, levels臭氧濃度/水平PHRASESdamage to the ozone layer, depletion of the ozone layer, destruction of the ozone layer對臭氧層的損害/損耗/破壞a hole in the ozone layer臭氧層空洞

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