ray flower

noun Botany.
  1. one of the marginal florets surrounding the disk of tubular florets in the flower heads of certain composite plants, as the daisy.

Origin of ray flower

First recorded in 1850–55
Also called ray floret.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for ray floret

ray floret

ray flower

noun
  1. any of the small strap-shaped flowers in the flower head of certain composite plants, such as the daisyCompare disc floret
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

ray floret in Science

ray flower

  1. One of the narrow flowers, resembling single petals, that surround the central disk in the capitulum or flower cluster of a plant of the composite family (Asteraceae or Compositae), such as the daisy or sunflower. Rays are often male flowers with sterile stamens. Also called ray ray floret
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.