dihedral group

(redirected from Dihedral group D2)
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Related to Dihedral group D2: Dihedral group D5

dihedral group

n.
The group of rotations and reflections of a regular polygon.
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.