blue vitriol

Từ điển WordNet v3.1 - WordNet Dictionary

noun

hydrated blue crystalline form of copper sulfate
• Syn:
blue copperas, blue stone, chalcanthite
• Hypernyms:
copper sulfate, copper sulphate, cupric sulfate, cupric sulphate

• Từ đồng nghĩa / Synonyms:
  blue copperas, blue stone, chalcanthite