from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) The blue coloring matter of flowers; -- called also
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun The
blue colouring matterof certain flowerssuch as the violetor the cornflower
Sorry, no etymologies found.
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
Of the several kinds of cyanin, chlorosulphate, nitrate, and iodide, the latter acts best, as stated by Eder.
The dark to light-brown pigment, hitherto a problem, universally used on parchment, he contends upon historical, chemical and microscopic evidence is identical with oeno-cyanin and was prepared for the most part from yeast, and was first employed as a pigment.
Bloxam says that the coloring matter of grapes and of red wine appears to be "cyanin."