Definition of "cyanin" [cy•a•nin]

• The blue colouring matter of certain flowers such as the violet or the cornflower (noun)

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• "I refer to alizarin blue, alizarin cyanin, alizarin indigo, alizarin green, and coerulin."
• "After the experiments made by me, eosine mixtures acted equally in the yellow and blue shade; likewise mixtures of cyanin 1/10 and eosine yellow shade 9/10 were the most favorable."
• "Schumann has already said that one drop of cyanin solution, 1 to 2,500 to"