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English definition of “ozone”

ozone

noun [U]     /ˈəʊ.zəʊn/ US  /ˈoʊ.zoʊn/
C1 a poisonous form of oxygenEnvironmental issuesRubbish and wasteProtection and protectorsSpecific chemicals, chemical compounds and gasesSubstances and structures in the bodyTypes of chemical UK informal air that is clean and pleasant to breathe, especially near the seaEnvironmental issuesRubbish and wasteProtection and protectors
(Definition of ozone noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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