SUNFLOWER

sunflower, helianthus

(noun) any plant of the genus Helianthus having large flower heads with dark disk florets and showy yellow rays

Source: WordNet® 3.1

Etymology

Noun

sunflower (plural sunflowers)

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 commonly cultivated species, Helianthus annuus, a native of America.

A bright yellow, like that of the flower petals.

(informal, organic chemistry) Any flat, radially symmetric organic compound such as coronene

Anagrams

• unflowers

Source: Wiktionary

Sun"flow`er, n.

Definition: Any plant of the genus Helianthus; -- so called probably from the form and color of its flower, which is large disk with yellow rays. The commonly cultivated sunflower is Helianthus annuus, a native of America.

Source: Webster’s Unabridged Dictionary 1913 Edition