/kawrn"flow'euhr/ , n.
1. Also called bachelor's-button, bluebottle . a European composite plant, Centaurea cyanus, growing in grainfields, having blue to white flower heads, often cultivated as an ornamental.
2. Also called cornflower blue . a deep, vivid blue.
3. See corn cockle .
4. strawflower (def. 2).
[ 1570-80; CORN 1 + FLOWER ]