[ noun ] (chemistry,meteorology) ice crystals forming a white deposit (especially on objects outside)
Used in print(Helen Hooven Santmyer, "There Were Fences"...)
The curb was a line of stone laid edgewise in the dirt and tilted this way and that by frost in the ground or the roots of trees .
[ noun ] Last name, frequency rank in the U.S. is 728
[ verb ] cover with frost
"ice crystals frosted the glass"
[ verb ] provide with a rough or speckled surface or appearance
"frost the glass" "she frosts her hair"