cyănŏs: or -us, i, m., = κύανος.I The blue corn-flower, blue-bottle: Centaurea cyanus, Linn.; Plin. 21, 8, 24, § 48; 21, 11, 39, § 68.—II A precious stone, a species of lapis lazuli, Plin. 37, 9, 38, § 119.