ozone

Ozone is a gas that is pale-blue, unstable and a form of oxygen.

(noun)

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

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See ozone in Webster's New World College Dictionary

noun

  1. an unstable, pale-blue gas, O, 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
  2. Slang pure, fresh air

Origin: Fr < Gr ozein, to smell < IE base *od- > L odor

Related Forms:

See ozone in American Heritage Dictionary 4

noun
  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.

Origin:

Origin: German Ozon

Origin: , from Greek ozon

Origin: , neuter present participle of ozein, to smell

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Related Forms:

  • o·zoˈnic (ō-zōˈnĭk, ō-zŏnˈĭk), oˈzonˌous (ōˈzōˌnəs) adjective

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