TOP

Definition of ozone noun from the Oxford Advanced Learner's Dictionary

ozone

noun
 
/ˈəʊzəʊn/
 
/ˈəʊzəʊn/
 [uncountable]
jump to other results
  1. (chemistry) a poisonous gas with a strong smell that is a form of oxygen
    • Ozone is formed when an electric spark is passed through oxygen.
    • the discovery of massive springtime reductions in ozone over Antarctica
    Topics Physics and chemistryc1
    Oxford Collocations Dictionaryadjective
    • atmospheric
    • ground-level
    • stratospheric
    • …
    verb + ozone
    • deplete
    • destroy
    • form
    • …
    ozone + verb
    • thin
    • disappear
    ozone + noun
    • layer
    • depletion
    • destruction
    • …
    phrases
    • damage to the ozone layer
    • depletion of the ozone layer
    • destruction of the ozone layer
    • …
    See full entry
  2. (British English, informal) air near the sea that smells fresh and pure
    3. Word Originmid 19th cent.: from German Ozon, from Greek ozein ‘to smell’.
See ozone in the Oxford Advanced American DictionarySee ozone in the Oxford Learner's Dictionary of Academic English
Check pronunciation: ozone

Nearby words

previously
adverb
 
 
From the Word list
Oxford 3000
B1
Oxford Learner's Dictionaries Word of the Day