radial symmetry: Meaning and Definition of

ra'dial sym'metry

Pronunciation: [key]
? Biol. Biol.
  1. 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, characteristic of sessile and bottom-dwelling animals, as the sea anemone and starfish. Cf.
Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease.