defrost

 
Pronunciation: /diːˈfrɒst/

verb

[with object]
  • free (the interior of a refrigerator or freezer) of accumulated ice, usually by turning it off for a period.
  • [no object] (of a refrigerator or freezer) become free of accumulated ice in this way: she opened the door to let the fridge defrost
  • thaw (frozen food) before cooking it: defrost the turkey slowly
  • North American remove frost or ice from (the windscreen of a motor vehicle).

Derivatives

defroster

noun