(1) Any plant of the genus Centaurea .

(2) Like the dahlia, the cornflower Centaurea cyanus belongs to class 19.

(3) Any of various plants of the genus Centaurea having purple thistlelike flowers .

(4) Main ingredients: vitamin, centaurea cyanus, cinnamon, fingered citron and elastic protein, etc.

(5) Any of several plants of the genus Centaurea, especially C. calcitrapa, native to Eurasia, having spiny purplish flower heads.

(6) Asian plant widely grown for its sweetly fragrant pink flowers; sometimes placed in genus Centaurea.

(7) Natural violet cabbage pigment is one of anthocyanins in centaurea cyanus, mainly used for coloring food up to now.