cyanin Chem.
(ˈsaɪənɪn)
[f. cyan- 1 + -in.]
The blue colouring matter of certain flowers, as the violet and corn-flower.
| 1863–72 Watts Dict. Chem. II. 274 Red flowers are said also to owe their colour to the presence of cyanin reddened by a free acid. |