A white deposit of ice crystals, formed on objects outdoors, especially at night or in the early morning, when heat is lost by radiation into the clear sky.
The hoarfrost made the trees look like they were covered in sugar.
We woke to a beautiful scene where hoarfrost had transformed the landscape into a sparkling winter wonderland.
hoarfrosttransitive-verb
To cover something with hoarfrost.
The cold night air hoarfrosted the window panes.
A sudden drop in temperature can hoarfrost exposed surfaces, creating a temporary icy coating.
Frequently Asked Questions
The phonetic transcription of "hoarfrost" is /ˈhɔːr.frɒst/ in British English and /ˈhɔːr.frɑːst/ in American English. Click the 🔊 button to hear both pronunciations.
Example usage of "hoarfrost": "The hoarfrost made the trees look like they were covered in sugar.". More examples on the page.