1. devices that remove fog or condensation from surfaces, especially car windows

Examples

• The car’s rear defoggers cleared the condensation quickly.
• Turn on the defoggers to improve visibility through the windshield.
• The defoggers weren’t working properly during the rainy weather.
• Modern vehicles have automatic defoggers that activate when needed.
• She pressed the button to activate the front and rear defoggers.
• The defoggers use heated wires to remove moisture from the glass.