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Symmetrical arrangement, as of an organism or a body part, along a central axis, so that the body is divided into equivalent right and left halves by only one plane.
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.
(Biology) the property of an organism or part of an organism such that, if cut in only one plane, the two cut halves are mirror images of each other. See also radial symmetry
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a basic body plan in which the left and right sides of the organism can be divided into approximate mirror images of each other. Compare radial symmetry.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Symmetrical arrangement of an organism or part of an organism along a central axis. A bilaterally symmetrical organism or part is divided into two equal halves. Compare radial 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.
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|Noun||1.||bilateral symmetry - the property of being symmetrical about a vertical plane|
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