From Longman Dictionary of Contemporary Englishozoneo‧zone /ˈəʊzəʊn $ ˈoʊzoʊn/ noun [uncountable] 1 technicalHCSGP a poisonous blue gas that is a type of oxygen2 informalDN air near the sea, thought to be fresher and healthier
Examples from the Corpus
ozone• Both climatological and model-determined ozone fields were used.• The air in El Paso is arguably the dirtiest in Texas, violating federal standards for ozone, carbon monoxide and particulates.• Finally, we should comment on the relative abundance of ozone and hydrogen peroxide at Cape Grim.• Satellite measurements show that ozone loss worldwide has amounted to 2.9 percent over the past 10 years.• Since 1989 I have measured the ozone layer, solar ultraviolet and the clarity of the air over South-Central Texas.• The loss of the ozone layer is also believed to be having a cooling effect.• The rest of the ozone layer of management at Salomon Brothers had never really been in touch.Origin ozone (1800-1900) German ozon, from Greek, from ozein “to smell” 