noun, plural helianthuses.
any composite plant of the genus Helianthus, comprising the sunflowers.

1770–80; < Neo-Latin; see heli-1, -anthous

helianthaceous [hee-lee-uhn-they-shuhs] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To helianthaceous
World English Dictionary
helianthus (ˌhiːlɪˈænθəs)
n , pl -thuses
any plant of the genus Helianthus, such as the sunflower and Jerusalem artichoke, typically having large yellow daisy-like flowers with yellow, brown, or purple centres: family Asteraceae (composites)
[C18: New Latin, from Greek hēlios sun + anthos flower]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature