1.ice crystals forming a white deposit (especially on objects outside)
2.weather cold enough to cause freezing
3.the formation of frost or ice on a surface
1.decorate with frosting;
frost a cake
2.provide with a rough or speckled surface or appearance;
frost the glass
3.cover with frost;
ice crystals frosted the glass
4.damage by frost;
The icy precipitation frosted the flowers and athey turned brown