The term REFRIGERATOR DEVICE can be broken down into two parts: the refrigerator and the defroster. The refrigerator is an electrical appliance used to keep food and other items cool. It works by circulating cold air around the interior of the unit, which helps to maintain a consistent temperature. The defroster is a device that is used to remove frost from the inside of a refrigerator. It works by using heat to melt the frost, allowing it to be easily wiped away.