de•frostPronunciation: (di-frôst', -frost'), [key]
to remove the frost or ice from: to defrost a refrigerator; to defrost the windshield of a car.
to thaw or partially thaw (frozen food).
to become free of ice or frost: The refrigerator defrosted quickly.
to thaw, as frozen food: The meat took two hours to defrost.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.