When you defrost frozen food or when it defrosts, you allow or cause it to become unfrozen so that you can eat it or cook it. She has a microwave, but uses it mainly for defrosting bread Once the turkey has defrosted, remove the giblets. freeze
When you defrost a fridge or freezer, you switch it off or press a special switch so that the ice inside it can melt. You can also say that a fridge or freezer is defrosting. Defrost the fridge regularly so that it works at maximum efficiency