radial symmetry

from WordNet (r) 3.0 (2006)

radial symmetry
    n 1: the property of symmetry about an axis; "the starfish
         illustrates radial symmetry" [ant: {radial asymmetry}]

from The Collaborative International Dictionary of English v.0.48

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]