'Radial symmetry' definitions:

Definition of 'radial symmetry'

From: WordNet
noun
The property of symmetry about an axis; "the starfish illustrates radial symmetry" [ant: radial asymmetry]

Definition of 'Radial symmetry'

From: GCIDE
  • Radial \Ra"di*al\ (r[=a]"d[i^]*al), a. [Cf. F. radial. See Radius.] Of or pertaining to a radius or ray; consisting of, or like, radii or rays; radiated; as, (Bot.) radial projections; (Zool.) radial vessels or canals; (Anat.) the radial artery. [1913 Webster]
  • Radial symmetry. (Biol.) See under Symmetry. [1913 Webster]