decagon
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dec·a·gon
(dĕk′ə-gŏn′)n.
A polygon with ten sides and ten angles.
[Medieval Latin decagōnum, from Greek dekagōnon, from neuter of dekagōnos, having ten angles : deka, ten; see dekm̥ in Indo-European roots + -gōnos, angled; see -gon.]
de·cag′o·nal (dĭ-kăg′ə-nəl) adj.
de·cag′o·nal·ly adv.
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.
decagon
(ˈdɛkəˌɡɒn)n
(Mathematics) a polygon having ten sides
decagonal adj
deˈcagonally adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
dec•a•gon
(ˈdɛk əˌgɒn)n.
a polygon having ten angles and ten sides.
de•cag•o•nal (dəˈkæg ə nl) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
dec·a·gon
(dĕk′ə-gŏn′) A polygon having ten sides.
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. |  decagon - a polygon with 10 sides and 10 anglespolygon, polygonal shape - a closed plane figure bounded by straight sides |
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