sunflower

English

a sunflower - Helianthus annuus

Etymology

sun + flower

Pronunciation

  • (US) IPA(key): /ˈsʌnˌflaʊəɹ/

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.
    1. The commonly cultivated species, Helianthus annuus, a native of America.
  2. A bright yellow, like that of the flower petals.
    sunflower colour:  
  3. (informal, organic chemistry) Any flat, radially symmetric organic compound such as coronene

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