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defrost

verb [I or T]
 
 
/ˌdiːˈfrɒst/ US  /-ˈfrɑːst/

Definition

to (cause to) become free of ice, or to (cause to) become no longer frozen: When you get a build-up of ice in your freezer, you know it's time to defrost it. Defrost the chicken thoroughly before cooking. Leave the chicken to defrost.Preserving and storing food
(Definition of defrost verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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