anchusin Chem.
(ˈæŋkjuːsɪn)
[f. L. anchūsa generic name of the Alkanets + -in.]
The colouring principle of alkanet root; an amorphous resinoid substance of a deep red colour.
| 1863 Watts Dict. Chem. I. 290 Nitric acid transforms anchusin into oxalic acid and a bitter substance..Alkalis form with anchusin blue compounds. |