Definition of bachelor's button in English English dictionary
A button which may be attached to clothing without resorting to needle and thread
Any one of a number of plants with daisylike, button shaped flowers of the genus Centaurea, especially the species Centaurea cyanus
or cornflower Herbaceous, hardy annual plant (Centaurea cyanus) of the composite family, having flower heads with blue, pink, or white rays. It is native to the Mediterranean region and widely cultivated in North America. A common garden plant, it often also appears as a weed