1) Deicer 2) Heater 3) Ice-melting device 4) Refrigerator device 5) Warmer 6) Windshield heater 1) Deicer 2) Thawer 
a device to dispel ice from the windows of a driver's cab
[n] - heater that removes ice or frost (as from a windshield or a refrigerator or the wings of an airplane)
deicer noun heater that removes ice or frost (as from a windshield or a refrigerator or the wings of an airplane)
a person or thing that defrosts. · Also calleda device for melting frost, ice, or condensation on a windshield or other window of an automobile, airplane, etc., by warming the window.