sunflowers

Noun

sunflower (plural sunflowers)

1. Any 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 flowers glowed red and golden: snapdragons and sunflowers, and nasturtians trailing all over the turf walls and peeping in at the round windows.1954 July 29, J.R.R. Tolkien, “I: A Long-Expected Party”, in The Fellowship of the Ring (The Lord of the Rings; 1), →ISBN
   1. The commonly cultivated species, Helianthus annuus, a native of America.
2. A bright yellow, like that of the flower petals.
3. (informal) Any flat, radially symmetric organic compound, such as coronene.
4. Synonym of worm-star.

   Synonyms:

   worm-star

5. (UK) An 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.

See all 7 meanings of sunflower