demister

/diːˈmɪstər/
noun
  1. A device or system that removes mist or condensation from a surface, especially a car's windshield or window.
    • Many modern cars have an electric demister for the side mirrors.
    • The car's rear demister quickly cleared the foggy window.
    • He turned on the front demister to improve visibility.
Synonyms
What does "demister" mean? | whatsthatwordmean | whatsthatwordmean