cartina tornasole
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Italian[edit]
Alternative forms[edit]
Noun[edit]
cartina tornasole f (plural cartine tornasole)
- (chemistry) litmus paper
- (figurative) irrefutable evidence, proof; smoking gun
Further reading[edit]
- tornasole in Treccani.it – Vocabolario Treccani on line, Istituto dell'Enciclopedia Italiana