Meaning of DEFROST in English

[verb] - to (cause to) become free of ice, or to (cause to) become no longer frozenWhen you get a build-up of ice in your freezer, you know it's time to defrost it. [T]Defrost the chicken (= cause it to be no longer frozen) thoroughly before cooking. [T]Leave the chicken to defrost (= become no longer frozen). [I]

Cambridge English vocab.      Кембриджский английский словарь.