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Hint: Question mark (?) is a wildcard. Question mark substitutes one character.
English
noun
:
blue vitriol
1.
blue vitriol
(substance)
hydrated blue crystalline form of copper sulfate
Synonyms
blue copperas
,
blue stone
,
chalcanthite
Broader (hypernym)
copper sulfate
,
copper sulphate
,
cupric sulfate
,
cupric sulphate
Based on WordNet 3.0 copyright © Princeton University.
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. English edition:
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.
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