| 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). |
| 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. |