from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Botany Capable of being divided into equal halves along any diameter, as the flowers of the rose or tulip; radially symmetrical.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having its petals arranged in a radially symmetric fashion.
from The Century Dictionary and Cyclopedia
- Same as actinomorphous.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. capable of division into symmetrical halves by any longitudinal plane passing through the axis
actino- + -morphic (Wiktionary)
The flowers are normally bisexual, which means they contain male and female organs, and are normally also actinomorphic, which means they are radially symmetrical.