Centaurea cyanus cen·tau·rea·cyanus uncommon noun 1. an annual Eurasian plant cultivated in North America having showy heads of blue or purple or pink or white flowers Synonymscornflowerbachelor's buttonbluebottleCentaurea cyanus Related words Broader terms flower Parts Centaurea WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
