radial symmetry(redirected from actinomorphism)
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Related to actinomorphism: zygomorphic
Symmetrical arrangement of constituents, especially of radiating parts, about a central point.
radially symmetrical adj.
(Biology) a type of structure of an organism or part of an organism in which a vertical cut through the axis in any of two or more planes produces two halves that are mirror images of each other. Compare bilateral symmetry
a basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis. Compare bilateral symmetry.
The arrangement of similar forms or features around a central point. The bodies of echinoderms, such as starfish and sea urchins, are radially symmetrical. Compare bilateral symmetry.
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|Noun||1.||radial symmetry - the property of symmetry about an axis; "the starfish illustrates radial symmetry"|
symmetricalness, symmetry, correspondence, balance - (mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane
radial asymmetry - the absence of symmetry about an axis