radial symmetry

Noun

 * 1) A form of symmetry in which identical parts are arranged in a circular fashion around a central axis.
 * A starfish has radial symmetry; a butterfly does not.

Usage notes

 * The plural is very rare but not unheard of.

Related terms

 * symmetry
 * bilateral symmetry

Translations

 * Irish: ga-shiméadracht
 * Tagalog: timbuluging parianyo