降こう霜そう

noun

frost formation; frost

Refers to the meteorological phenomenon of frost forming, or the frost itself. Often used in weather reports or agricultural contexts.

• 今朝けさは降こう霜そうのため、畑はたけの野や菜さいが少すこし傷いたんだ。

  This morning, the vegetables in the field were slightly damaged due to frost formation.

• 天てん気き予よ報ほうによると、明日あしたの朝あさは降こう霜そうに注ちゅう意いが必ひつ要ようだ。

  According to the weather forecast, we need to be careful of frost tomorrow morning.