1. to remove ice or frost from something, or to become free of ice or frost
2. to thaw frozen food so it can be cooked or eaten

Examples

• I need to defrost the chicken before cooking dinner.
• The windshield will defrost once the car warms up.
• She forgot to defrost the ground beef for tonight’s meal.
• Use the defrost setting on your microwave for frozen vegetables.
• The freezer defrosts automatically every few hours.
• Remember to defrost the turkey two days before Thanksgiving.