Definition of defog verb from the Oxford Advanced American Dictionary

 

defog

 verb
verb
NAmE//ˌdiˈfɔɡ//
 
, NAmE//ˌdiˈfɑɡ//
 
[transitive, intransitive]defog (something)Verb Forms present simple I / you / we / they defog
 
,
 
he / she / it defogs
 
,
 
past simple defogged
 
,
 
-ing form defogging
 
,
 
 
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to remove the condensation from a car's windows so that you can see clearly
See the Oxford Advanced Learner's Dictionary entry: defog