/frɒst; [US] frɔ:st; frɔst/
n
1 (a) [U] weather condition in which the temperature falls below freezing-point, usu accompanied by the formation of frost(2) 严寒（气温在冰点以下, 通常伴有霜冻）
*Young plants are often killed by frost. 植物的幼苗常因严寒而冻死.
* a temperature of
10 degrees of frost, ie
10 degrees Celsius below freezing-point 冰点下10摄氏度的气温.
(b) [C] instance or period of this 严寒; 严寒期
*There was a heavy (ie severe) frost last night. 昨夜有严重霜冻.
* early frosts, ie in autumn 秋寒
* late frosts, ie in spring 春寒.
2 [U] dew or water vapour frozen into tiny white ice crystals that cover the ground, etc when the temperature falls below freezing-point 霜
*The windscreen was covered with frost. 挡风玻璃上结了霜.

v
1 [Tn] cover (sth) with frost 在（某物）上结霜
*frosted pavements 结霜的人行道.
2 [Tn usu passive 通常用于被动语态] kill or damage (plants, etc) with frost n (1) 冻死或冻坏（植物等）.
3 [Tn] (esp US) decorate (a cake, etc) with icing or frosting 用糖衣或糖霜装饰（糕饼等）.
4 [Tn] make (glass) opaque by giving it a rough frostlike surface 使（玻璃）不透明（形成霜状粗糙表面）
*frosted window panes 磨砂窗户玻璃.
5 (phr v) frost over/up become covered with frost 结霜
*The car windscreen frosted over during the night. 汽车的挡风玻璃在夜间结了霜.