sunflower

English

a sunflower - Helianthus annuus

Etymology

From sun + flower. Compare English sunbloom.

Pronunciation

  • (General American) IPA(key): /ˈsʌn.flaʊ.ɚ/
  • (Received Pronunciation) IPA(key): /ˈsʌn.flaʊ.ə/
  • (file)
  • Hyphenation: sun‧flow‧er

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:  
  3. (informal, organic chemistry) Any flat, radially symmetric organic compound, such as coronene.
  4. (pathology) Synonym of worm-star
  5. (UK, rail transport) 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.

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