o·zone (  zn )n. 1. An unstable, poisonous allotrope of oxygen, O3, that is formed naturally in the ozone layer from atmospheric oxygen by electric discharge or exposure to ultraviolet radiation, also produced in the lower atmosphere by the photochemical reaction of certain pollutants. It is a highly reactive oxidizing agent used to deodorize air, purify water, and treat industrial wastes. 2. Informal Fresh, pure air. [German Ozon, from Greek ozon, neuter present participle of ozein, to smell.] o·zo nic (-zn k, -z nk), ozonous (zn s) adj. |
ozone [ˈəʊzəʊn əʊˈzəʊn]
n
1. (Chemistry / Elements & Compounds) a colourless gas with a chlorine-like odour, formed by an electric discharge in oxygen: a strong oxidizing agent, used in bleaching, sterilizing water, purifying air, etc. Formula: O3; density: 2.14 kg/m3; melting pt.: -192°C; boiling pt.: -110.51°C Technical name trioxygen
2. Informal clean bracing air, as found at the seaside
[from German Ozon, from Greek: smell]
ozonic [əʊˈzɒnɪk], ozonous adj
| ozone (zn) An unstable, poisonous allotrope of oxygen having the chemical formula O3. Ozone forms in the atmosphere through the process of photolysis, when ultraviolet radiation from the Sun strikes oxygen molecules (O2), causing them to split apart. When freed oxygen atoms bump into and join other O2 molecules, they form ozone. Although ozone is broken down naturally in the atmosphere through chemical reactions with other atmospheric gases (such as nitrogen, hydrogen, and chlorine), in an unpolluted atmosphere the formation and breakdown of ozone is generally balanced, and the total concentration of ozone is relatively constant. The formation and destruction rates of ozone vary with altitude in the atmosphere, and with latitude. Most ozone forms in the 15 to 30 km (10 to 19 mi) altitude range and in latitudes closest to the equator where sunshine strikes the Earth the most. The ozone is then transported northward and southward by wind and is generally most concentrated in areas above the Canadian Arctic and Siberia and above Antarctica. Ozone is used commercially in water purification, in air conditioning, and as a bleach. A Closer Look Ozone is both beneficial for and threatening to all of Earth's organisms, including human beings, depending on how high in the atmosphere it is found. Ozone is naturally produced in the stratospheric portion of Earth's atmosphere (in the ozone layer) by the action of high-energy ultraviolet radiation on molecular oxygen (O2 ). By absorbing much of the Sun's ultraviolet radiation, the ozone layer serves as a sunscreen for organisms on Earth. In recent years the ozone has thinned or disappeared in parts of the ozone layer, creating an ozone hole that lets in dangerous amounts of ultraviolet radiation. Ozone holes are caused in part by the release into the atmosphere of industrial and commercial chemicals, in particular the chlorofluorocarbons (such as freon) used in aerosols, refrigerants, and certain cleaning solvents. Closer to Earth's surface, ozone is one of the so-called greenhouse gases that are produced by the burning of fossil fuels and cause the greenhouse effect. Ozone at ground level is also an air pollutant, contributing to respiratory diseases such as asthma. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  ozone - 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)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 gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely |
Translations
ozone
ozone:
n → Ozon nt
ozone:
ozone depletion
ozone hole
n → Ozonloch nt
ozone layer
ozone levels
pl → Ozonwerte pl
ozone-safe
adj = ozone-friendly
ozone shield
n → Ozonschicht f
n ozone [ˈouzəun]
1 fresh (sea) air. osoon هَواء مُنْعِش свеж морски въздух čerstvý mořský vzduch frisk (hav-)luft frische Luft καθαρός θαλασσινός αέρας aire puro värske õhk هوای تازه otsoni air marin אָווִיר צַח ओजोन ozon, svjež zrak ózon udara segar hressandi loft (aria pura) 新鮮な空気 신선한 공기 grynas jūros oras svaigs/jūras gaiss udara segar ozon frisk (hav)luft morskie powietrze ar puro ozon чистый, свежий воздух čerstvý morský vzduch morski zrak svež vazduh frisk []luft อากาศที่บริสุทธิ์ temiz hava 新鮮空氣 свіже повітря تازہ ہوا không khí trong lành 新鲜空气
2 a type of oxygen. osoon اوزون: نَوع من الأوكسجين озон ozón ozon das Ozon όζον ozono osoon ازن otsoni ozone אוֹזוֹן विशेष गंध युक्त आक्सीजन vrsta kisika, ozon ózon ozon ósón ozono オゾン 오존 ozonas ozons ozon ozon oson ozon ozono ozon озон ozón ozon ozon ozon โอโซนออกซิเจนแบบหนึ่งที่มี 3 อะตอมในหนึ่งโมเลกุล ozon(O3) 臭氧 озон ايک قسم کا آکسيجن một loại oxy 臭氧
ozone → الأوزون ozón ozon Ozon όζον ozono otsoni ozone ozon ozono オゾン 오존 ozon ozon ozon ozônio, ozono озон ozon ก๊าซโอโซน ozon khí Ozon 臭氧
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