defrost

verb (used with object)

1. to remove the frost or ice from: to defrost a refrigerator; to defrost the windshield of a car.
2. to thaw or partially thaw (frozen food).

verb (used without object)

3. to become free of ice or frost: The refrigerator defrosted quickly.
4. to thaw, as frozen food: The meat took two hours to defrost.

verb

1. to make or become free of frost or ice
2. to thaw, esp through removal from a refrigerator

v.

1895, from de- + frost. Related: Defrosted; defrosting.