hoarfrost

Từ điển WordNet v3.1 - WordNet Dictionary

noun

ice crystals forming a white deposit (especially on objects outside)
• Syn:
frost, hoar, rime
• Derivationally related forms:
frosty (for: frost), frost (for: frost)
• Hypernyms:
ice, water ice

• Từ đồng nghĩa / Synonyms:
  frost, hoar, rime