Any of a group of delicate clusters of ice crystals that form directly from water vapor, typically on the surface of sea ice.
More example sentences
- This is significant, because it's the salt in frost flowers that could be important to climate change.
- Solar heat is undoubtably destructive to frost flowers and thus most are found in shaded spots.
- Each layer of ice is so thin that the total frost flower is almost weightless and will shatter like glass if touched.