- Biology. having radial symmetry.
- Botany. (of certain flowers, as the buttercup) divisible vertically into similar halves by each of a number of planes passing through the axis.
Origin of actinomorphic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- botany (esp of a flower) having radial symmetry, as buttercupsSee also zygomorphic
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
- Relating to a flower that can be divided into equal halves along any diameter; radially symmetrical. The flowers of the rose and tulip are actinomorphic. Compare zygomorphic.
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