Ozone meaning

ōzōn
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.
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(chemistry) An allotrope of oxygen (symbol O3) having three atoms in the molecule instead of the usual two; it is a blue gas, generated from oxygen by electrical discharge.
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(from an erroneous former belief that seaweed contains and releases ozone) Fresh air, especially that breathed at the seaside and smelling of seaweed.
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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.
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Ozone is a gas that is pale-blue, unstable and a form of oxygen.

An example of ozone is a gas used to purify water.

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Fresh, pure air.
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An unstable, pale-blue gas, O3, with a penetrating odor: it is an allotropic form of oxygen, formed usually by a silent electrical discharge in air, and is used as an oxidizing, deodorizing, and bleaching agent and in the purification of water.
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Pure, fresh air.
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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.
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Origin of ozone

  • German Ozon from Greek ozon neuter present participle of ozein to smell

    From American Heritage Dictionary of the English Language, 5th Edition

  • From German Ozon, coined 1840 by Christian Friedrich Schönbein, from Ancient Greek ὄζον (ozon), neuter participle of ὄζω (ozō, “I smell"), in reference to its pungent odour.

    From Wiktionary