Noun
the property of symmetry about an axis
Source: WordNetthe starfish illustrates radial symmetry Source: Internet
Ruppert, Fox & Barnes (2004) p. 873 Echinoderms exhibit secondary radial symmetry in portions of their body at some stage of life. Source: Internet
The larvae of all echinoderms are even now bilaterally symmetrical and all develop radial symmetry at metamorphosis. Source: Internet
At this stage the bilateral symmetry is lost and radial symmetry develops. Source: Internet
This ancestral stock adopted an attached mode of life and suspension feeding, and developed radial symmetry as this was more advantageous for such an existence. Source: Internet