Definition of defrost verb from the Oxford Advanced Learner's Dictionary

     

    defrost

     verb
    verb
    BrE BrE//ˌdiːˈfrɒst//
     
    ; NAmE NAmE//ˌdiːˈfrɔːst//
     
    Verb Forms present simple I / you / we / they defrost
    BrE BrE//ˌdiːˈfrɒst//
     
    ; NAmE NAmE//ˌdiːˈfrɔːst//
     
    he / she / it defrosts
    BrE BrE//ˌdiːˈfrɒsts//
     
    ; NAmE NAmE//ˌdiːˈfrɔːsts//
     
    past simple defrosted
    BrE BrE//ˌdiːˈfrɒstɪd//
     
    ; NAmE NAmE//ˌdiːˈfrɔːstɪd//
     
    past participle defrosted
    BrE BrE//ˌdiːˈfrɒstɪd//
     
    ; NAmE NAmE//ˌdiːˈfrɔːstɪd//
     
    -ing form defrosting
    BrE BrE//ˌdiːˈfrɒstɪŋ//
     
    ; NAmE NAmE//ˌdiːˈfrɔːstɪŋ//
     
    Preparing food
     
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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. compare de-ice, melt, thaw, unfreeze See related entries: Preparing food
  2. 2[transitive, intransitive] defrost (something) when you defrost a fridge/refrigerator or freezer, or when it defrosts, you remove the ice from it
  3. 3[transitive] defrost something (North American English) to remove ice from the surface of a car’s windows
See the Oxford Advanced American Dictionary entry: defrost