🇬🇧 en fi 🇫🇮

hoar frost noun

  /ˈhoɹ ˌfɹɑst/ , /ˈhɔː fɹɒst/
  • (specifically, meteorology) Water vapour which has undergone deposition or desublimation when the air is cold and moist to form a white deposit on exposed surfaces.
 härmä
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