The term "frost snow" is not a standard phrase in English, but it seems to combine two related concepts: "frost" and "snow." Let’s break them down for better understanding.
Definition: Frost refers to small crystals of ice that form on surfaces when the temperature drops below freezing (0 degrees Celsius or 32 degrees Fahrenheit). It often appears on grass, leaves, and cars in the morning.
Definition: Snow consists of tiny ice crystals that fall from the sky when it’s cold. It covers the ground and can create a winter wonderland.
There are no specific phrasal verbs directly related to "frost" or "snow," but you might encounter phrases like "snow in" (to be trapped indoors due to heavy snowfall) or "frost over" (when something becomes covered in frost).
In summary, "frost" refers to those delicate ice crystals that form on cold surfaces, while "snow" refers to the falling ice crystals that create beautiful winter scenes.