verglas
/ˈvɛrɡlɑː/
noun
- A thin, transparent layer of ice that forms on surfaces such as roads, sidewalks, or rocks, often making them extremely slippery.
- Hikers had to be careful of verglas on the mountain trail after the temperature dropped.
- The morning rain froze overnight, leaving a dangerous verglas on the highway.
- The city spread salt on the sidewalks to prevent verglas from forming.