Anthokyan \An`tho*ky"an\, n. [Gr. 'a`nqos flower + ky`anos blue.] (Chem.) The blue coloring matter of certain flowers. Same as {Cyanin}. [1913 Webster]
Cyanin \Cy"a*nin\ (s?"?-n?n), n. [See {Cyanic}.] (Chem.) The blue coloring matter of flowers; -- called also {anthokyan} and {anthocyanin}. [1913 Webster]