n. Any of many water-soluble red to violet plant pigments related to the flavonoids.
the GNU version of the Collaborative International Dictionary of English
n. Same as anthokyan.
The Century Dictionary and Cyclopedia
n. The dissolved coloring matter in blue flowers.
Word Usage
"The anthocyanin is in both cases the same, but in the rose it is bound to a plant acid and is therefore red, whereas in the cornflower it is bound to an alkali and is therefore blue."