Définitions
1.NounAny plant of the genus Helianthus, so called probably from the form and color of its floral head, having the form of a large disk surrounded by yellow ray flowers.
The commonly cultivated species, Helianthus annuus, a native of America.
2.NounThe commonly cultivated species, Helianthus annuus, a native of America.
3.NounA bright yellow, like that of the flower petals."sunflower: "
4.NounAny flat, radially symmetric organic compound, such as coronene.
5.NounSynonym of worm-star.
6.NounAn Automatic Warning System (AWS) indicator in the driver's cab that is displayed after a driver has acknowledged an audible warning, which consists of a yellow circle enclosing a white circle, with black spokes overlaid.