radial symmetry

radial symmetry

n.

Symmetrical arrangement of constituents, especially of radiating parts, about a central point.

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radially symmetrical adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

radial symmetry

n

(Biology) a type of structure of an organism or part of an organism in which a vertical cut through the axis in any of two or more planes produces two halves that are mirror images of each other. Compare bilateral symmetry

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ra′dial sym′metry

n.

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. Compare bilateral symmetry.

[1885–90]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

ra·di·al symmetry

(rā′dē-əl)

The arrangement of similar forms or features around a central point. The bodies of echinoderms, such as starfish and sea urchins, are radially symmetrical. Compare bilateral symmetry.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Thesaurus

Noun

1.

radial symmetry - the property of symmetry about an axis; "the starfish illustrates radial symmetry" symmetricalness, symmetry, correspondence, balance - (mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane radial asymmetry - the absence of symmetry about an axis

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