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dodecagon

[ doh-dek-uh-gon, -guhn ]

noun

, Geometry.
  1. a polygon having 12 angles and 12 sides.


dodecagon

/ dəʊˈdɛkəˌɡɒn; ˌdəʊdɛˈkæɡənəl /

noun

  1. a polygon having twelve sides
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Derived Forms

  • dodecagonal, adjective
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Other Words From

  • do·de·cag·o·nal [doh-de-, kag, -, uh, -nl], adjective
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Word History and Origins

Origin of dodecagon1

First recorded in 1650–60; dodeca- + -gon

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dodeca-dodecahedron