Definition of defrost verb from the Oxford Advanced American Dictionary

     

    defrost

     verb
    verb
    NAmE//dɪˈfrɔst//
     
    Verb Forms present simple I / you / we / they defrost
     
    he / she / it defrosts
     
    past simple defrosted
     
    -ing form defrosting
     
     
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  1. 1 [intransitive, transitive] to become or make something warmer, especially food, so that it is no longer frozen It will take about four hours to defrost. defrost something Make sure you defrost the chicken completely before cooking.
  2. 2 [transitive, intransitive] defrost (something) when you defrost a refrigerator or freezer, or when it defrosts, you remove the ice from it compare de-ice, melt, thaw, unfreeze
  3. 3 [transitive] defrost something to remove ice from the surface of a car's windows
 
noun
See the Oxford Advanced Learner's Dictionary entry: defrost