- 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.
- 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
- Slang pure, fresh air
Origin of ozoneFrench ; from Classical Greek ozein, to smell ; from Indo-European base an unverified form od- from source Classical Latin odor
- 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.
- Informal Fresh, pure air.
Origin of ozoneGerman Ozon, from Greek ozon, neuter present participle of ozein, to smell.
- o·zo′nic , o′zon′ous
- (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.
- (from an erroneous former belief that seaweed contains and releases ozone) Fresh air, especially that breathed at the seaside and smelling of seaweed.
- (chemistry): ozonate
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.