- 1[uncountable, countable] a weather condition in which the temperature drops below 32°F or 0°C (= freezing point) so that a thin white layer of ice forms on the ground and other surfaces, especially at night It will be a clear night with some ground frost. a light/heavy/hard frost frost damage
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- 2[uncountable] the thin white layer of ice that forms when the temperature drops below 32°F or 0°C The car windows were covered with frost. see hoarfrost
Check pronunciation: frost