ground frost

Noun

 * 1)  The condition of air temperature dropping below the freezing point at or near ground level.
 * 2) Ice produced by the direct deposition of water vapor on grass, trees and other objects in freezing conditions.
 * 3) The frozen upper level of soil, caused by the air temperature dropping below the freezing point for a lengthy period of time; in temperate climates the soil thaws completely for the summer and in cold climates it may develop to permafrost.

Translations

 * Finnish:
 * Swedish: markfrost


 * Finnish:
 * Swedish:


 * Finnish: ,
 * German:
 * Ingrian: kersi
 * Norwegian:
 * Swedish: